SB2020120121 - Ubuntu update for xorg-server 

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Main Vulnerability Database SB2020120121

SB2020120121 - Ubuntu update for xorg-server

Published: December 1, 2020 Updated: April 23, 2025

Security Bulletin ID SB2020120121
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 read (CVE-ID: CVE-2020-14360)

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

The vulnerability exists due to a boundary condition when processing XkbSetMap requests. A local user can trigger an out-of-bounds read error and read contents of memory on the system.


2) Heap-based buffer overflow (CVE-ID: CVE-2020-25712)

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

The vulnerability exists due to a boundary error within XkbSetDeviceInfo functionality. A local user can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system with elevated privileges.


Remediation

Install update from vendor's website.

References