Alma Linux: CVE-2023-0494: Moderate: xorg-x11-server security and bug fix update (Multiple Advisories)

Alma Linux: CVE-2023-0494: Moderate: xorg-x11-server security and bug fix update (Multiple Advisories)

Severity

7

CVSS

(AV:L/AC:L/Au:S/C:C/I:C/A:C)

Published

02/08/2023

Created

02/14/2023

Added

02/13/2023

Modified

01/28/2025

Description

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

Solution(s)

• alma-upgrade-tigervnc
• alma-upgrade-tigervnc-icons
• alma-upgrade-tigervnc-license
• alma-upgrade-tigervnc-selinux
• alma-upgrade-tigervnc-server
• alma-upgrade-tigervnc-server-minimal
• alma-upgrade-tigervnc-server-module
• alma-upgrade-xorg-x11-server-common
• alma-upgrade-xorg-x11-server-devel
• alma-upgrade-xorg-x11-server-source
• alma-upgrade-xorg-x11-server-xdmx
• alma-upgrade-xorg-x11-server-xephyr
• alma-upgrade-xorg-x11-server-xnest
• alma-upgrade-xorg-x11-server-xorg
• alma-upgrade-xorg-x11-server-xvfb
• alma-upgrade-xorg-x11-server-xwayland

References

• https://attackerkb.com/topics/cve-2023-0494
• CVE - 2023-0494
• https://errata.almalinux.org/8/ALSA-2023-0662.html
• https://errata.almalinux.org/8/ALSA-2023-2805.html
• https://errata.almalinux.org/8/ALSA-2023-2806.html
• https://errata.almalinux.org/9/ALSA-2023-0622.html
• https://errata.almalinux.org/9/ALSA-2023-2248.html
• https://errata.almalinux.org/9/ALSA-2023-2249.html

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