vuln-ubuntu/data/osv/usn/USN-5638-2.json

{
  "schema_version": "1.7.0",
  "id": "USN-5638-2",
  "summary": "expat vulnerabilities",
  "details": "USN-5638-1 fixed a vulnerability in Expat. This update provides\nthe corresponding updates for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and\nUbuntu 22.04 LTS.\n\nIt was discovered that Expat incorrectly handled memory in out-of-memory\nsituations. An attacker could possibly use this issue to cause a crash,\n resulting in a denial of service, or possibly execute arbitrary code.\n This issue only affected Ubuntu 18.04 LTS. (CVE-2022-43680)\n\nOriginal advisory details:\n\n Rhodri James discovered that Expat incorrectly handled memory when\n processing certain malformed XML files. An attacker could possibly\n use this issue to cause a crash or execute arbitrary code.\n",
  "aliases": [],
  "upstream": [
    "UBUNTU-CVE-2022-40674",
    "UBUNTU-CVE-2022-43680"
  ],
  "related": [],
  "published": "2022-11-17T09:56:58Z",
  "modified": "2026-04-27T14:11:29Z",
  "affected": [
    {
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "expat",
        "purl": "pkg:deb/ubuntu/expat@2.2.5-3ubuntu0.8?arch=source&distro=bionic"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.5-3ubuntu0.8"
            }
          ]
        }
      ],
      "versions": [
        "2.2.3-1",
        "2.2.3-2",
        "2.2.5-0ubuntu2",
        "2.2.5-3",
        "2.2.5-3ubuntu0.1",
        "2.2.5-3ubuntu0.2",
        "2.2.5-3ubuntu0.4",
        "2.2.5-3ubuntu0.7"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "expat",
            "binary_version": "2.2.5-3ubuntu0.8"
          },
          {
            "binary_name": "libexpat1",
            "binary_version": "2.2.5-3ubuntu0.8"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:18.04:LTS",
          "cves": [
            {
              "id": "CVE-2022-40674",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            },
            {
              "id": "CVE-2022-43680",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "expat",
        "purl": "pkg:deb/ubuntu/expat@2.2.9-1ubuntu0.5?arch=source&distro=focal"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.2.9-1ubuntu0.5"
            }
          ]
        }
      ],
      "versions": [
        "2.2.7-2",
        "2.2.9-1",
        "2.2.9-1build1",
        "2.2.9-1ubuntu0.2",
        "2.2.9-1ubuntu0.4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "expat",
            "binary_version": "2.2.9-1ubuntu0.5"
          },
          {
            "binary_name": "libexpat1",
            "binary_version": "2.2.9-1ubuntu0.5"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:20.04:LTS",
          "cves": [
            {
              "id": "CVE-2022-40674",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    },
    {
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "expat",
        "purl": "pkg:deb/ubuntu/expat@2.4.7-1ubuntu0.1?arch=source&distro=jammy"
      },
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.4.7-1ubuntu0.1"
            }
          ]
        }
      ],
      "versions": [
        "2.4.1-2",
        "2.4.1-3",
        "2.4.2-1",
        "2.4.3-1",
        "2.4.3-2",
        "2.4.4-1",
        "2.4.6-1",
        "2.4.7-1"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "expat",
            "binary_version": "2.4.7-1ubuntu0.1"
          },
          {
            "binary_name": "libexpat1",
            "binary_version": "2.4.7-1ubuntu0.1"
          }
        ],
        "availability": "No subscription required"
      },
      "database_specific": {
        "cves_map": {
          "ecosystem": "Ubuntu:22.04:LTS",
          "cves": [
            {
              "id": "CVE-2022-40674",
              "severity": [
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "CVSS_V3",
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
                },
                {
                  "type": "Ubuntu",
                  "score": "medium"
                }
              ]
            }
          ]
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5638-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-40674"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-43680"
    }
  ]
}