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openssh — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2023-51385

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.

Products
openssh
Affected versions
1:9.2p1-2, 1:9.2p1-2+deb12u1
Fixed versions
1:9.2p1-2+deb12u2, 1:9.6p1-1
CVEs
CVE-2023-51385
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 15:59 UTC · Revision 1

Source evidence

DEBIAN-CVE-2023-51385

core-osv · Original source

Published 18 Dec 2023, 19:15 UTC

In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.

osv:DEBIAN-CVE-2023-51385

openssh

Fixed versions: 1:9.2p1-2+deb12u2

openssh

Fixed versions: 1:9.6p1-1

openssh

Fixed versions: 1:9.6p1-1

Complete source record
{
  "id": "35d618204d7fe5bc9f9d80a1bc6bac29963dc5e8ff44474cd2827f86dab20a5a",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-51385",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2023-51385",
    "summary": "In ssh in OpenSSH before 9.6, OS command injection might occur if a user name or host name has shell metacharacters, and this name is referenced by an expansion token in certain situations. For example, an untrusted Git repository can have a submodule with shell metacharacters in a user name or host name.",
    "evidence": "osv:DEBIAN-CVE-2023-51385",
    "products": [
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:9.2p1-2+deb12u2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1:9.2p1-2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1:9.2p1-2+deb12u1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:9.6p1-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "openssh",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:9.6p1-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "DEBIAN-CVE-2023-51385",
      "aliases": [
        "DEBIAN-CVE-2023-51385"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:9.2p1-2+deb12u2"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/debian/openssh?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "versions": [
            "1:9.2p1-2",
            "1:9.2p1-2+deb12u1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51385.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:9.6p1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/debian/openssh?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51385.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:9.6p1-1"
                }
              ]
            }
          ],
          "package": {
            "name": "openssh",
            "purl": "pkg:deb/debian/openssh?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51385.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-26T18:02:35.626313746Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-51385"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2023-51385"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2023-51385",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 456321,
  "published_at": "2023-12-18T19:15:08.773+00:00"
}