SB2023110253 - Fedora 39 update for tigervnc

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Main Vulnerability Database SB2023110253

SB2023110253 - Fedora 39 update for tigervnc

Published: November 2, 2023

Security Bulletin ID SB2023110253
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-2023-5367)

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

The vulnerability exists due to a boundary error in IChangeDeviceProperty/RRChangeOutputProperty. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


2) Use-after-free (CVE-ID: CVE-2023-5380)

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

The vulnerability exists due to a use-after-free error in DestroyWindow. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References