========================================================================== Ubuntu Security Notice USN-7302-1 February 25, 2025
libxml2 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 24.10 - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in libxml2. Software Description: - libxml2: GNOME XML library Details: 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) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 24.10 libxml2 2.12.7+dfsg-3ubuntu0.2 Ubuntu 24.04 LTS libxml2 2.9.14+dfsg-1.3ubuntu3.2 Ubuntu 22.04 LTS libxml2 2.9.13+dfsg-1ubuntu0.6 Ubuntu 20.04 LTS libxml2 2.9.10+dfsg-5ubuntu0.20.04.9 Ubuntu 18.04 LTS libxml2 2.9.4+dfsg1-6.1ubuntu1.9+esm2 Available with Ubuntu Pro Ubuntu 16.04 LTS libxml2 2.9.3+dfsg1-1ubuntu0.7+esm7 Available with Ubuntu Pro Ubuntu 14.04 LTS libxml2 2.9.1+dfsg1-3ubuntu4.13+esm7 Available with Ubuntu Pro In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-7302-1 CVE-2022-49043, CVE-2024-34459, CVE-2024-56171, CVE-2025-24928, CVE-2025-27113 Package Information: https://launchpad.net/ubuntu/+source/libxml2/2.12.7+dfsg-3ubuntu0.2 https://launchpad.net/ubuntu/+source/libxml2/2.9.14+dfsg-1.3ubuntu3.2 https://launchpad.net/ubuntu/+source/libxml2/2.9.13+dfsg-1ubuntu0.6 https://launchpad.net/ubuntu/+source/libxml2/2.9.10+dfsg-5ubuntu0.20.04.9
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