========================================================================== Ubuntu Security Notice USN-8600-1 July 23, 2026
libxpm vulnerability ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 26.04 LTS - Ubuntu 24.04 LTS - Ubuntu 22.04 LTS Summary: libXpm could be made to crash if it opened a specially crafted file. Software Description: - libxpm: X11 pixmap library Details: Naoki Wakamatsu discovered that libXpm did not properly validate file boundaries when processing XPM image files. An attacker could possibly use this issue to cause libXpm to crash, resulting in a denial of service. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 26.04 LTS libxpm4 1:3.5.17-1ubuntu0.26.04.1 xpmutils 1:3.5.17-1ubuntu0.26.04.1 Ubuntu 24.04 LTS libxpm4 1:3.5.17-1ubuntu0.24.04.1 xpmutils 1:3.5.17-1ubuntu0.24.04.1 Ubuntu 22.04 LTS libxpm4 1:3.5.12-1ubuntu0.22.04.3 xpmutils 1:3.5.12-1ubuntu0.22.04.3 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-8600-1 CVE-2026-4367 Package Information: https://launchpad.net/ubuntu/+source/libxpm/1:3.5.17-1ubuntu0.26.04.1 https://launchpad.net/ubuntu/+source/libxpm/1:3.5.17-1ubuntu0.24.04.1 https://launchpad.net/ubuntu/+source/libxpm/1:3.5.12-1ubuntu0.22.04.3
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