ubuntu-cve-2021-45261
Vulnerability from osv_ubuntu
Published
2021-12-22 18:15
Modified
2026-05-20 14:53
Summary
Details

An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
negligible
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.1-4ubuntu2.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.1-4ubuntu2.4+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.1-3",
        "2.7.1-4",
        "2.7.1-4ubuntu1",
        "2.7.1-4ubuntu2",
        "2.7.1-4ubuntu2.3",
        "2.7.1-4ubuntu2.4",
        "2.7.1-4ubuntu2.4+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.5-1ubuntu0.16.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.5-1ubuntu0.16.04.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.5-1",
        "2.7.5-1ubuntu0.16.04.1",
        "2.7.5-1ubuntu0.16.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.6-2ubuntu1.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.6-2ubuntu1.1?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.5-1build1",
        "2.7.6-1",
        "2.7.6-2ubuntu1",
        "2.7.6-2ubuntu1.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.6-6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.6-6?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.6-6"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.6-7build2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.6-7build2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.6-7",
        "2.7.6-7build1",
        "2.7.6-7build2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.7.6-7build3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.7.6-7build3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.6-7build2",
        "2.7.6-7build3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.8-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.8-2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.7.6-7build3",
        "2.8-1",
        "2.8-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "patch",
            "binary_version": "2.8-2build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "patch",
        "purl": "pkg:deb/ubuntu/patch@2.8-2build1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.8-2",
        "2.8-2build1"
      ]
    }
  ],
  "aliases": [],
  "details": "An Invalid Pointer vulnerability exists in GNU patch 2.7 via the another_hunk function, which causes a Denial of Service.",
  "id": "UBUNTU-CVE-2021-45261",
  "modified": "2026-05-20T14:53:38Z",
  "published": "2021-12-22T18:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-45261"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-45261"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "negligible",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2021-45261"
  ]
}



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