Security advisory

{
  "id": "2df9c0c2d1851ad9ee063c482c445b10fd2938aafa743f258bd101ca2dd8777b",
  "url": "https://osv.dev/vulnerability/CVE-2018-10933",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-10933",
    "summary": "A vulnerability was found in libssh's server-side state machine before versions 0.7.6 and 0.8.4. A malicious client could create channels without first performing authentication, resulting in unauthorized access.",
    "evidence": "osv:CVE-2018-10933",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2018-10933",
      "aliases": [
        "CVE-2018-10933"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://gitlab.com/libssh/libssh-mirror",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4919771f0fea3df09ace2887ef7e0baae5b76baf"
                },
                {
                  "fixed": "c20b360c96a098773755e82982ec6d7dfc7ff057"
                },
                {
                  "introduced": "d66ea0b3b100664916cbab965e79a870e31ac7fe"
                },
                {
                  "fixed": "789df0b7d0c7abd6b85db9fc5247e146e3d4ddba"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.6.0"
                      },
                      {
                        "fixed": "0.7.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:libssh:libssh:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0.8.0"
                      },
                      {
                        "fixed": "0.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "libssh-0.8.3",
            "libssh-0.8.2",
            "libssh-0.8.1",
            "libssh-0.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-10933.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:16.120254428Z",
      "provider": "osv",
      "references": [
        "https://lists.debian.org/debian-lts-announce/2018/10/msg00010.html",
        "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0016",
        "https://security.netapp.com/advisory/ntap-20190118-0002/",
        "https://usn.ubuntu.com/3795-1/",
        "https://usn.ubuntu.com/3795-2/",
        "https://www.debian.org/security/2018/dsa-4322",
        "https://www.libssh.org/security/advisories/CVE-2018-10933.txt",
        "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10933",
        "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html",
        "https://www.exploit-db.com/exploits/45638/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:netapp:oncommand_unified_manager:*:*:*:*:*:vsphere:*:*",
              "cpe:2.3:a:netapp:oncommand_unified_manager:*:*:*:*:*:windows:*:*"
            ],
            "vendor_product": "netapp:oncommand_unified_manager",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.3"
                  },
                  {
                    "introduced": "9.4"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:oracle:mysql_workbench:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "oracle:mysql_workbench",
            "extracted_events": [
              {
                "range": [
                  {
                    "last_affected": "8.0.13"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
              "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*"
            ],
            "vendor_product": "canonical:ubuntu_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "14.04"
                  },
                  {
                    "last_affected": "14.04"
                  },
                  {
                    "introduced": "16.04"
                  },
                  {
                    "last_affected": "16.04"
                  },
                  {
                    "introduced": "18.04"
                  },
                  {
                    "last_affected": "18.04"
                  },
                  {
                    "introduced": "18.10"
                  },
                  {
                    "last_affected": "18.10"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
              "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "8.0"
                  },
                  {
                    "last_affected": "8.0"
                  },
                  {
                    "introduced": "9.0"
                  },
                  {
                    "last_affected": "9.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "redhat:enterprise_linux",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "7.0"
                  },
                  {
                    "last_affected": "7.0"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2018-10933",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 429293,
  "published_at": "2018-10-17T12:29:00.65+00:00"
}