It was discovered that libxml2 incorrectly handled certain memory operations. A remote attacker could use this issue to cause libxml2 to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2022-49043)
It was discovered that the libxml2 xmllint tool incorrectly handled certain memory operations. If a user or automated system were tricked into running xmllint on a specially crafted xml file, a remote attacker could cause xmllint to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS. (CVE-2024-34459)
It was discovered that libxml2 did not properly manage memory. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2024-56171)
It was discovered that libxml2 could be made to write out of bounds. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2025-24928)
It was discovered that libxml2 could be made to dereference invalid memory. An attacker could possibly use this issue to cause a denial of service. (CVE-2025-27113)
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.9", "binary_name": "libxml2" }, { "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.9", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.9", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.9", "binary_name": "python-libxml2" }, { "binary_version": "2.9.10+dfsg-5ubuntu0.20.04.9", "binary_name": "python3-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:20.04:LTS" } }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.9.13+dfsg-1ubuntu0.6", "binary_name": "libxml2" }, { "binary_version": "2.9.13+dfsg-1ubuntu0.6", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.13+dfsg-1ubuntu0.6", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.13+dfsg-1ubuntu0.6", "binary_name": "python3-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:22.04:LTS" } }
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2.9.14+dfsg-1.3ubuntu3.2", "binary_name": "libxml2" }, { "binary_version": "2.9.14+dfsg-1.3ubuntu3.2", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.14+dfsg-1.3ubuntu3.2", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.14+dfsg-1.3ubuntu3.2", "binary_name": "python3-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:24.04:LTS" } }
{ "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro", "binaries": [ { "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm7", "binary_name": "libxml2" }, { "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm7", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm7", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.1+dfsg1-3ubuntu4.13+esm7", "binary_name": "python-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2022-49043", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2024-34459", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N" }, { "type": "Ubuntu", "score": "low" } ] }, { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:Pro:14.04:LTS" } }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm7", "binary_name": "libxml2" }, { "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm7", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm7", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.3+dfsg1-1ubuntu0.7+esm7", "binary_name": "python-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2022-49043", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2024-34459", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N" }, { "type": "Ubuntu", "score": "low" } ] }, { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:Pro:16.04:LTS" } }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm2", "binary_name": "libxml2" }, { "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm2", "binary_name": "libxml2-dev" }, { "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm2", "binary_name": "libxml2-utils" }, { "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm2", "binary_name": "python-libxml2" }, { "binary_version": "2.9.4+dfsg1-6.1ubuntu1.9+esm2", "binary_name": "python3-libxml2" } ] }
{ "cves_map": { "cves": [ { "id": "CVE-2022-49043", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H" }, { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2024-34459", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N" }, { "type": "Ubuntu", "score": "low" } ] }, { "id": "CVE-2024-56171", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-24928", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N" }, { "type": "Ubuntu", "score": "medium" } ] }, { "id": "CVE-2025-27113", "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:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L" }, { "type": "Ubuntu", "score": "medium" } ] } ], "ecosystem": "Ubuntu:Pro:18.04:LTS" } }