USN-7299-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 16.04 LTS and Ubuntu 18.04 LTS.
Original advisory details:
Jan-Niklas Sohn discovered that the X.Org X Server incorrectly handled certain memory operations. An attacker could use these issues to cause the X Server to crash, leading to a denial of service, or possibly execute arbitrary code.
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{ "cves_map": { "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-2025-26594" } ], "ecosystem": "Ubuntu:Pro:16.04:LTS" } }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xmir-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xorg-server-source-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xserver-xephyr-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xserver-xorg-core-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xserver-xorg-dev-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xserver-xorg-legacy-hwe-16.04" }, { "binary_version": "2:1.19.6-1ubuntu4.1~16.04.6+esm7", "binary_name": "xwayland-hwe-16.04" } ] }
{ "cves_map": { "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-2025-26594" } ], "ecosystem": "Ubuntu:Pro:16.04:LTS" } }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xdmx" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xdmx-tools" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xmir" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xnest" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xorg-server-source" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-common" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-xephyr" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-xorg-core" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-xorg-dev" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-xorg-legacy" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xserver-xorg-xmir" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xvfb" }, { "binary_version": "2:1.19.6-1ubuntu4.15+esm10", "binary_name": "xwayland" } ] }
{ "cves_map": { "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-2025-26594" } ], "ecosystem": "Ubuntu:Pro:18.04:LTS" } }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "binaries": [ { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xorg-server-source-hwe-18.04" }, { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xserver-xephyr-hwe-18.04" }, { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xserver-xorg-core-hwe-18.04" }, { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xserver-xorg-dev-hwe-18.04" }, { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xserver-xorg-legacy-hwe-18.04" }, { "binary_version": "2:1.20.8-2ubuntu2.2~18.04.11+esm2", "binary_name": "xwayland-hwe-18.04" } ] }
{ "cves_map": { "cves": [ { "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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-2025-26594" } ], "ecosystem": "Ubuntu:Pro:18.04:LTS" } }