openssh, openssh-ssh1 — security advisory

{
  "id": "1f49b0357af0691fac1dac456a93721fd11708fcd1d34efa828832f360abd040",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-32728",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2025-32728",
    "summary": "In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding.",
    "evidence": "osv:UBUNTU-CVE-2025-32728",
    "products": [
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
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            "value": "1:7.5p1-10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm4",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:7.6p1-4ubuntu0.7+esm6",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
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          {
            "value": "1:7.5p1-8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.5p1-9",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.5p1-9build1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "1:7.5p1-10",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
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        },
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            "value": "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.3",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.4",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.5",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.6",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.7",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.8",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.9",
            "evidence": "/affected/2/versions"
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            "evidence": "/affected/2/versions"
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        ]
      },
      {
        "name": {
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        },
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            "value": "1:7.9p1-10~ubuntu18.04.fips.0.1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "1:7.9p1-10~ubuntu18.04.fips.0.2",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
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          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
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          {
            "value": "1:8.2p1-4ubuntu0.13",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:8.0p1-6build1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.1p1-1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.1p1-5",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.3",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.4",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.5",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.7",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.8",
            "evidence": "/affected/4/versions"
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          {
            "value": "1:8.2p1-4ubuntu0.9",
            "evidence": "/affected/4/versions"
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            "evidence": "/affected/4/versions"
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          {
            "value": "1:8.2p1-4ubuntu0.11",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.12",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-11build1",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
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        },
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            "value": "1:8.2p1-4ubuntu0.fips.0.13",
            "evidence": "/affected/6/ranges"
          }
        ],
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            "value": "1:8.2p1-4ubuntu0.fips.0.2.1",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.4.0",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.5.0",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.7",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.8",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "1:8.2p1-4ubuntu0.fips.0.9",
            "evidence": "/affected/6/versions"
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          {
            "value": "1:8.2p1-4ubuntu0.fips.0.10",
            "evidence": "/affected/6/versions"
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      {
        "name": {
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            "evidence": "/affected/8/versions"
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            "evidence": "/affected/8/versions"
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            "evidence": "/affected/8/versions"
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            "evidence": "/affected/8/versions"
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      {
        "name": {
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          "evidence": "/affected/9/package/name"
        },
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        "fixed_versions": [],
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            "evidence": "/affected/9/versions"
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            "evidence": "/affected/9/versions"
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      {
        "name": {
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        },
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            "value": "1:8.9p1-3ubuntu0.4+Fips1",
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          },
          {
            "value": "1:8.9p1-3ubuntu0.4+Fips3",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "1:8.9p1-3ubuntu1.fips.0~ppa3",
            "evidence": "/affected/10/versions"
          }
        ]
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        "name": {
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          {
            "value": "1:8.9p1-3ubuntu0.4+Fips3",
            "evidence": "/affected/11/versions"
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          {
            "value": "1:8.9p1-3ubuntu0.6+Fips1",
            "evidence": "/affected/11/versions"
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          {
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            "evidence": "/affected/11/versions"
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          {
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      {
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        "affected_versions": [
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/12/versions"
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            "evidence": "/affected/13/versions"
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            "evidence": "/affected/13/versions"
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            "evidence": "/affected/13/versions"
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        ]
      },
      {
        "name": {
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        },
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        ],
        "affected_versions": [
          {
            "value": "1:9.6p1-3ubuntu13.7+Fips1",
            "evidence": "/affected/14/versions"
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        ]
      },
      {
        "name": {
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        },
        "prerequisites": [],
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            "evidence": "/affected/15/ranges"
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            "value": "1:9.9p1-3ubuntu3",
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      {
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        },
        "prerequisites": [],
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        "affected_versions": [
          {
            "value": "1:7.5p1-17",
            "evidence": "/affected/16/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-18",
            "evidence": "/affected/17/versions"
          },
          {
            "value": "1:7.5p1-18ubuntu1",
            "evidence": "/affected/17/versions"
          },
          {
            "value": "1:7.5p1-18ubuntu2",
            "evidence": "/affected/17/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh-ssh1",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1:7.5p1-17",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "1:7.5p1-18",
            "evidence": "/affected/18/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2025-32728",
      "aliases": [
        "UBUNTU-CVE-2025-32728"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N"
        },
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
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            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=esm-infra%2Fbionic",
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          },
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            "1:7.6p1-4",
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            "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/2025/UBUNTU-CVE-2025-32728.json"
          },
          "ecosystem_specific": {
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              {
                "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"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
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            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=bionic",
            "ecosystem": "Ubuntu:18.04:LTS"
          },
          "versions": [
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            "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/2025/UBUNTU-CVE-2025-32728.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-10"
              }
            ]
          }
        },
        {
          "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",
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            "1:7.9p1-10~ubuntu18.04.fips.0.3",
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            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32728.json"
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            ],
            "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:9.9p1-3ubuntu3.1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/ubuntu/openssh?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "1:9.9p1-3ubuntu3"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32728.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "openssh-client-gssapi",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "openssh-server",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "openssh-server-gssapi",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "openssh-sftp-server",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "openssh-tests",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "ssh",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              },
              {
                "binary_name": "ssh-askpass-gnome",
                "binary_version": "1:9.9p1-3ubuntu3.1"
              }
            ],
            "availability": "No subscription required"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh-ssh1",
            "purl": "pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=questing",
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          },
          "versions": [
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          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32728.json"
          },
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          }
        },
        {
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          ],
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          ],
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          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "openssh-client-ssh1",
                "binary_version": "1:7.5p1-18ubuntu2"
              }
            ]
          }
        },
        {
          "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/2025/UBUNTU-CVE-2025-32728.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
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                "binary_version": "1:7.5p1-18"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:57:27.304170265Z",
      "provider": "osv",
      "upstream": [
        "CVE-2025-32728"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2025-32728",
        "https://www.cve.org/CVERecord?id=CVE-2025-32728",
        "https://lists.mindrot.org/pipermail/openssh-unix-dev/2025-April/041879.html",
        "https://ftp.openbsd.org/pub/OpenBSD/patches/7.6/common/013_ssh.patch.sig",
        "https://www.openssh.com/txt/release-10.0",
        "https://www.openssh.com/txt/release-7.4",
        "https://ubuntu.com/security/notices/USN-7457-1"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2025-32728",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 357522,
  "published_at": "2025-04-10T02:15:00+00:00"
}