usn-6565-1
Vulnerability from osv_ubuntu
Published
2024-01-03 18:00
Modified
2026-05-29 17:44
Summary
openssh vulnerabilities
Details

It was discovered that OpenSSH incorrectly handled supplemental groups when running helper programs for AuthorizedKeysCommand and AuthorizedPrincipalsCommand as a different user. An attacker could possibly use this issue to escalate privileges. This issue only affected Ubuntu 20.04 LTS. (CVE-2021-41617)

It was discovered that OpenSSH incorrectly added destination constraints when PKCS#11 token keys were added to ssh-agent, contrary to expectations. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-51384)

It was discovered that OpenSSH incorrectly handled user names or host names with shell metacharacters. An attacker could possibly use this issue to perform OS command injection. (CVE-2023-51385)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-41617",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-51385",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "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"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "openssh",
        "purl": "pkg:deb/ubuntu/openssh@1:8.2p1-4ubuntu0.11?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:8.2p1-4ubuntu0.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "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": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2023-51384",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-51385",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openssh-client",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          },
          {
            "binary_name": "openssh-server",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          },
          {
            "binary_name": "openssh-sftp-server",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          },
          {
            "binary_name": "openssh-tests",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          },
          {
            "binary_name": "ssh",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          },
          {
            "binary_name": "ssh-askpass-gnome",
            "binary_version": "1:8.9p1-3ubuntu0.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "openssh",
        "purl": "pkg:deb/ubuntu/openssh@1:8.9p1-3ubuntu0.6?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:8.9p1-3ubuntu0.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:8.4p1-6ubuntu2",
        "1:8.7p1-2",
        "1:8.7p1-2build1",
        "1:8.7p1-4",
        "1:8.8p1-1",
        "1:8.9p1-3",
        "1:8.9p1-3ubuntu0.1",
        "1:8.9p1-3ubuntu0.3",
        "1:8.9p1-3ubuntu0.4",
        "1:8.9p1-3ubuntu0.5"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that OpenSSH incorrectly handled supplemental groups when\nrunning helper programs for AuthorizedKeysCommand and\nAuthorizedPrincipalsCommand as a different user. An attacker could possibly\nuse this issue to escalate privileges. This issue only affected Ubuntu\n20.04 LTS. (CVE-2021-41617)\n\nIt was discovered that OpenSSH incorrectly added destination constraints\nwhen PKCS#11 token keys were added to ssh-agent, contrary to expectations.\nThis issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04.\n(CVE-2023-51384)\n\nIt was discovered that OpenSSH incorrectly handled user names or host names\nwith shell metacharacters. An attacker could possibly use this issue to\nperform OS command injection. (CVE-2023-51385)\n",
  "id": "USN-6565-1",
  "modified": "2026-05-29T17:44:09Z",
  "published": "2024-01-03T18:00:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6565-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-41617"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-51384"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-51385"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openssh vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2021-41617",
    "UBUNTU-CVE-2023-51384",
    "UBUNTU-CVE-2023-51385"
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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