Amazon Linux AMI: CVE-2023-0494: Security patch for tigervnc ((Multiple Advisories))

Amazon Linux AMI: CVE-2023-0494: Security patch for tigervnc ((Multiple Advisories))

Severity

7

CVSS

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

Published

02/07/2023

Created

03/24/2023

Added

03/23/2023

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)

• amazon-linux-upgrade-tigervnc
• amazon-linux-upgrade-xorg-x11-server

References

• ALAS-2023-1746
• CVE-2023-0494