SB2023121390 - Ubuntu update for xorg-server 

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Main Vulnerability Database SB2023121390

SB2023121390 - Ubuntu update for xorg-server

Published: December 13, 2023

Security Bulletin ID SB2023121390
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2023-6377)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the XKB button handler when switching logical input devices. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


2) Integer overflow (CVE-ID: CVE-2023-6478)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to integer overflow when handling RRChangeProviderProperty or RRChangeOutputProperty requests. A local user can send a specially crafted request to the server, trigger an integer overflow and gain access to sensitive information.


Remediation

Install update from vendor's website.

References