openssh, openssh-ssh1 — security advisory

{
  "id": "d7b3b1377eeca0f75dc4e4e553ee5b558f384f6ed9da9c01c5f52bb843d81ed7",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-41617",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2021-41617",
    "summary": "sshd in OpenSSH 6.2 through 8.x before 8.8, when certain non-default configurations are used, allows privilege escalation because supplemental groups are not initialized as expected. Helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand may run with privileges associated with group memberships of the sshd process, if the configuration specifies running the command as a different user.",
    "evidence": "osv:UBUNTU-CVE-2021-41617",
    "products": [
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:6.2p2-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.2p2-6ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.4p1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.4p1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.5p1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.5p1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.5p1-3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.5p1-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.5p1-6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.11",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.12",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.13",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.13+esm1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.13+esm2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.13+esm3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:6.6p1-2ubuntu2.13+esm4",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:7.2p2-4ubuntu2.10+esm2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:6.9p1-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:6.9p1-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p1-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p1-4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p1-6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p2-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.1p2-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p1-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-3",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.5",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.7",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.10",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.10+esm1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
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          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.10.3",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.2.3",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.4.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.4.2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.8.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.10.2",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/3/package/name"
        },
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        "fixed_versions": [],
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          {
            "value": "1:7.2p2-4ubuntu2.fips.2.2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.2.1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1:7.2p2-4ubuntu2.fips.2.10.1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
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          {
            "value": "1:7.5p1-10",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.3",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.5",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.6",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7",
            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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            "value": "1:7.6p1-4ubuntu0.7+esm4",
            "evidence": "/affected/4/versions"
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            "value": "1:7.6p1-4ubuntu0.7+esm5",
            "evidence": "/affected/4/versions"
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            "value": "1:7.6p1-4ubuntu0.7+esm6",
            "evidence": "/affected/4/versions"
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        ]
      },
      {
        "name": {
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          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
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            "evidence": "/affected/5/versions"
          },
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            "value": "1:7.5p1-9",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "1:7.5p1-9build1",
            "evidence": "/affected/5/versions"
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            "evidence": "/affected/5/versions"
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      {
        "name": {
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          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.3",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.4",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.5",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.6",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.7",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.8",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.9",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.10",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "evidence": "/affected/7/versions"
          }
        ]
      },
      {
        "name": {
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          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:8.2p1-4ubuntu0.11",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:8.0p1-6build1",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.1p1-1",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.1p1-5",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.1",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.2",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.3",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.4",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.5",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.7",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.8",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.9",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.10",
            "evidence": "/affected/8/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-11build1",
            "evidence": "/affected/9/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.11",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.4.0",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.5.0",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.7",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.8",
            "evidence": "/affected/10/versions"
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          {
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            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.10",
            "evidence": "/affected/10/versions"
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        ]
      },
      {
        "name": {
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          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
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            "value": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "evidence": "/affected/11/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-12",
            "evidence": "/affected/12/versions"
          },
          {
            "value": "1:7.5p1-12build1",
            "evidence": "/affected/12/versions"
          },
          {
            "value": "1:7.5p1-13",
            "evidence": "/affected/12/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-14",
            "evidence": "/affected/13/versions"
          },
          {
            "value": "1:7.5p1-15",
            "evidence": "/affected/13/versions"
          },
          {
            "value": "1:7.5p1-15build1",
            "evidence": "/affected/13/versions"
          },
          {
            "value": "1:7.5p1-16",
            "evidence": "/affected/13/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-17",
            "evidence": "/affected/14/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-18",
            "evidence": "/affected/15/versions"
          },
          {
            "value": "1:7.5p1-18ubuntu1",
            "evidence": "/affected/15/versions"
          },
          {
            "value": "1:7.5p1-18ubuntu2",
            "evidence": "/affected/15/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-17",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "1:7.5p1-18",
            "evidence": "/affected/16/versions"
          }
        ]
      }
    ],
    "severity": "high",
    "structured": {
      "id": "UBUNTU-CVE-2021-41617",
      "aliases": [
        "UBUNTU-CVE-2021-41617"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
        },
        {
          "type": "Ubuntu",
          "score": "low"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=esm-infra-legacy%2Ftrusty",
            "ecosystem": "Ubuntu:Pro:14.04:LTS"
          },
          "versions": [
            "1:6.2p2-6",
            "1:6.2p2-6ubuntu1",
            "1:6.4p1-1",
            "1:6.4p1-2",
            "1:6.5p1-1",
            "1:6.5p1-2",
            "1:6.5p1-3",
            "1:6.5p1-4",
            "1:6.5p1-6",
            "1:6.6p1-1",
            "1:6.6p1-2",
            "1:6.6p1-2ubuntu1",
            "1:6.6p1-2ubuntu2",
            "1:6.6p1-2ubuntu2.2",
            "1:6.6p1-2ubuntu2.3",
            "1:6.6p1-2ubuntu2.4",
            "1:6.6p1-2ubuntu2.6",
            "1:6.6p1-2ubuntu2.7",
            "1:6.6p1-2ubuntu2.8",
            "1:6.6p1-2ubuntu2.10",
            "1:6.6p1-2ubuntu2.11",
            "1:6.6p1-2ubuntu2.12",
            "1:6.6p1-2ubuntu2.13",
            "1:6.6p1-2ubuntu2.13+esm1",
            "1:6.6p1-2ubuntu2.13+esm2",
            "1:6.6p1-2ubuntu2.13+esm3",
            "1:6.6p1-2ubuntu2.13+esm4"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              },
              {
                "binary_name": "ssh-krb5",
                "binary_version": "1:6.6p1-2ubuntu2.13+esm4"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:7.2p2-4ubuntu2.10+esm2"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=esm-infra%2Fxenial",
            "ecosystem": "Ubuntu:Pro:16.04:LTS"
          },
          "versions": [
            "1:6.9p1-2",
            "1:6.9p1-3",
            "1:7.1p1-1",
            "1:7.1p1-3",
            "1:7.1p1-4",
            "1:7.1p1-6",
            "1:7.1p2-1",
            "1:7.1p2-2",
            "1:7.2p1-1",
            "1:7.2p2-1",
            "1:7.2p2-2",
            "1:7.2p2-3",
            "1:7.2p2-4",
            "1:7.2p2-4ubuntu1",
            "1:7.2p2-4ubuntu2.1",
            "1:7.2p2-4ubuntu2.2",
            "1:7.2p2-4ubuntu2.4",
            "1:7.2p2-4ubuntu2.5",
            "1:7.2p2-4ubuntu2.6",
            "1:7.2p2-4ubuntu2.7",
            "1:7.2p2-4ubuntu2.8",
            "1:7.2p2-4ubuntu2.10",
            "1:7.2p2-4ubuntu2.10+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              },
              {
                "binary_name": "ssh-krb5",
                "binary_version": "1:7.2p2-4ubuntu2.10+esm2"
              }
            ],
            "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:7.2p2-4ubuntu2.fips.2.10.3"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips-updates%2Fxenial",
            "ecosystem": "Ubuntu:Pro:FIPS-updates:16.04:LTS"
          },
          "versions": [
            "1:7.2p2-4ubuntu2.fips.2.2.3",
            "1:7.2p2-4ubuntu2.fips.2.4.1",
            "1:7.2p2-4ubuntu2.fips.2.4.2",
            "1:7.2p2-4ubuntu2.fips.2.8.1",
            "1:7.2p2-4ubuntu2.fips.2.10.1",
            "1:7.2p2-4ubuntu2.fips.2.10.2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "openssh-client-hmac",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "openssh-server-hmac",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              },
              {
                "binary_name": "ssh-krb5",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.3"
              }
            ],
            "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips%2Fxenial",
            "ecosystem": "Ubuntu:Pro:FIPS:16.04:LTS"
          },
          "versions": [
            "1:7.2p2-4ubuntu2.fips.2.2",
            "1:7.2p2-4ubuntu2.fips.2.2.1",
            "1:7.2p2-4ubuntu2.fips.2.10.1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "openssh-client-hmac",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "openssh-server-hmac",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              },
              {
                "binary_name": "ssh-krb5",
                "binary_version": "1:7.2p2-4ubuntu2.fips.2.10.1"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=esm-infra%2Fbionic",
            "ecosystem": "Ubuntu:Pro:18.04:LTS"
          },
          "versions": [
            "1:7.5p1-10",
            "1:7.6p1-4",
            "1:7.6p1-4ubuntu0.1",
            "1:7.6p1-4ubuntu0.2",
            "1:7.6p1-4ubuntu0.3",
            "1:7.6p1-4ubuntu0.5",
            "1:7.6p1-4ubuntu0.6",
            "1:7.6p1-4ubuntu0.7",
            "1:7.6p1-4ubuntu0.7+esm1",
            "1:7.6p1-4ubuntu0.7+esm2",
            "1:7.6p1-4ubuntu0.7+esm3",
            "1:7.6p1-4ubuntu0.7+esm4",
            "1:7.6p1-4ubuntu0.7+esm5",
            "1:7.6p1-4ubuntu0.7+esm6"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.6p1-4ubuntu0.7+esm6"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.6p1-4ubuntu0.7+esm6"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.6p1-4ubuntu0.7+esm6"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.6p1-4ubuntu0.7+esm6"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.6p1-4ubuntu0.7+esm6"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=bionic",
            "ecosystem": "Ubuntu:18.04:LTS"
          },
          "versions": [
            "1:7.5p1-8",
            "1:7.5p1-9",
            "1:7.5p1-9build1",
            "1:7.5p1-10"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-10"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips-updates%2Fbionic",
            "ecosystem": "Ubuntu:Pro:FIPS-updates:18.04:LTS"
          },
          "versions": [
            "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "1:7.9p1-10~ubuntu18.04.fips.0.3",
            "1:7.9p1-10~ubuntu18.04.fips.0.4",
            "1:7.9p1-10~ubuntu18.04.fips.0.5",
            "1:7.9p1-10~ubuntu18.04.fips.0.6",
            "1:7.9p1-10~ubuntu18.04.fips.0.7",
            "1:7.9p1-10~ubuntu18.04.fips.0.8",
            "1:7.9p1-10~ubuntu18.04.fips.0.9",
            "1:7.9p1-10~ubuntu18.04.fips.0.10"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "openssh-client-hmac",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "openssh-server-hmac",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.10"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips%2Fbionic",
            "ecosystem": "Ubuntu:Pro:FIPS:18.04:LTS"
          },
          "versions": [
            "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "1:7.9p1-10~ubuntu18.04.fips.0.2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "openssh-client-hmac",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "openssh-server-hmac",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:7.9p1-10~ubuntu18.04.fips.0.2"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:8.2p1-4ubuntu0.11"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=focal",
            "ecosystem": "Ubuntu:20.04:LTS"
          },
          "versions": [
            "1:8.0p1-6build1",
            "1:8.1p1-1",
            "1:8.1p1-5",
            "1:8.2p1-4",
            "1:8.2p1-4ubuntu0.1",
            "1:8.2p1-4ubuntu0.2",
            "1:8.2p1-4ubuntu0.3",
            "1:8.2p1-4ubuntu0.4",
            "1:8.2p1-4ubuntu0.5",
            "1:8.2p1-4ubuntu0.7",
            "1:8.2p1-4ubuntu0.8",
            "1:8.2p1-4ubuntu0.9",
            "1:8.2p1-4ubuntu0.10"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:8.2p1-4ubuntu0.11"
              }
            ],
            "availability": "No subscription required",
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=focal",
            "ecosystem": "Ubuntu:20.04:LTS"
          },
          "versions": [
            "1:7.5p1-11build1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-11build1"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:8.2p1-4ubuntu0.fips.0.11"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips-updates%2Ffocal",
            "ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS"
          },
          "versions": [
            "1:8.2p1-4ubuntu0.fips.0.2.1",
            "1:8.2p1-4ubuntu0.fips.0.4.0",
            "1:8.2p1-4ubuntu0.fips.0.5.0",
            "1:8.2p1-4ubuntu0.fips.0.7",
            "1:8.2p1-4ubuntu0.fips.0.8",
            "1:8.2p1-4ubuntu0.fips.0.9",
            "1:8.2p1-4ubuntu0.fips.0.10"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.11"
              }
            ],
            "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=fips%2Ffocal",
            "ecosystem": "Ubuntu:Pro:FIPS:20.04:LTS"
          },
          "versions": [
            "1:8.2p1-4ubuntu0.fips.0.2.1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:8.2p1-4ubuntu0.fips.0.2.1"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=jammy",
            "ecosystem": "Ubuntu:22.04:LTS"
          },
          "versions": [
            "1:7.5p1-12",
            "1:7.5p1-12build1",
            "1:7.5p1-13"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-13"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=noble",
            "ecosystem": "Ubuntu:24.04:LTS"
          },
          "versions": [
            "1:7.5p1-14",
            "1:7.5p1-15",
            "1:7.5p1-15build1",
            "1:7.5p1-16"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-16"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "1:7.5p1-17"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-17"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "1:7.5p1-18",
            "1:7.5p1-18ubuntu1",
            "1:7.5p1-18ubuntu2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-18ubuntu2"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "1:7.5p1-17",
            "1:7.5p1-18"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-41617.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-18"
              }
            ],
            "priority_reason": "Cannot be reproduced on Ubuntu since sshd drops groups early"
          }
        }
      ],
      "modified": "2026-10-17T12:56:15.880899314Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-41617"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2021-41617",
        "https://www.openwall.com/lists/oss-security/2021/09/26/1",
        "https://www.openssh.com/txt/release-8.8",
        "https://www.openssh.com/security.html",
        "https://ubuntu.com/security/notices/USN-5666-1",
        "https://ubuntu.com/security/notices/USN-6565-1",
        "https://www.cve.org/CVERecord?id=CVE-2021-41617"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2021-41617",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 355076,
  "published_at": "2021-09-26T19:15:00+00:00"
}