{
  "schema_version": "1.7.0",
  "id": "USN-5378-2",
  "summary": "xz-utils vulnerability",
  "details": "Cleemy Desu Wayo discovered that XZ Utils incorrectly handled certain\nfilenames. If a user or automated system were tricked into performing\nxzgrep operations with specially crafted filenames, a remote attacker could\noverwrite arbitrary files.\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2022-1271"
  ],
  "related": [],
  "published": "2022-04-13T12:45:29Z",
  "modified": "2026-04-22T07:37:01Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "xz-utils",
        "purl": "pkg:deb/ubuntu/xz-utils@5.2.2-1.3ubuntu0.1?arch=source&distro=bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2.2-1.3ubuntu0.1"
            }
          ]
        }
      ],
      "versions": [
        "5.2.2-1.3"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "liblzma5",
            "binary_version": "5.2.2-1.3ubuntu0.1"
          },
          {
            "binary_name": "xz-utils",
            "binary_version": "5.2.2-1.3ubuntu0.1"
          },
          {
            "binary_name": "xzdec",
            "binary_version": "5.2.2-1.3ubuntu0.1"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:18.04:LTS",
          "cves": [
            {
              "id": "CVE-2022-1271",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "xz-utils",
        "purl": "pkg:deb/ubuntu/xz-utils@5.2.4-1ubuntu1.1?arch=source&distro=focal"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.2.4-1ubuntu1.1"
            }
          ]
        }
      ],
      "versions": [
        "5.2.4-1",
        "5.2.4-1ubuntu1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "liblzma5",
            "binary_version": "5.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "xz-utils",
            "binary_version": "5.2.4-1ubuntu1.1"
          },
          {
            "binary_name": "xzdec",
            "binary_version": "5.2.4-1ubuntu1.1"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:20.04:LTS",
          "cves": [
            {
              "id": "CVE-2022-1271",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5378-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-1271"
    }
  ]
}