========================================================================== Ubuntu Security Notice USN-5778-2 February 16, 2023
xorg-server, xorg-server-hwe-16.04 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 16.04 ESM - Ubuntu 14.04 ESM Summary: Several security issues were fixed in X.Org X Server. Software Description: - xorg-server: X.Org X11 server - xorg-server-hwe-16.04: X.Org X11 server Details: USN-5778-1 fixed several vulnerabilities in X.Org. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Original advisory details: Jan-Niklas Sohn discovered that X.Org X Server extensions contained multiple security issues. An attacker could possibly use these issues to cause the X Server to crash, execute arbitrary code, or escalate privileges. Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 ESM: xserver-xorg-core 2:1.18.4-0ubuntu0.12+esm5 xserver-xorg-core-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6+esm4 xwayland 2:1.18.4-0ubuntu0.12+esm5 xwayland-hwe-16.04 2:1.19.6-1ubuntu4.1~16.04.6+esm4 Ubuntu 14.04 ESM: xserver-xorg-core 2:1.15.1-0ubuntu2.11+esm7 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-5778-2 https://ubuntu.com/security/notices/USN-5778-1 CVE-2022-4283, CVE-2022-46340, CVE-2022-46341, CVE-2022-46342, CVE-2022-46343, CVE-2022-46344, CVE-2023-0494
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