Use After Free Affecting tigervnc-debuginfo package, versions <0:1.13.1-10.el8_10


Severity

Recommended
high

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-ROCKY8-TIGERVNCDEBUGINFO-6809866
  • published7 May 2024
  • disclosed5 Apr 2024

Introduced: 5 Apr 2024

CVE-2024-31083  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:8 tigervnc-debuginfo to version 0:1.13.1-10.el8_10 or higher.
This issue was patched in RLSA-2024:3261.

NVD Description

Note: Versions mentioned in the description apply only to the upstream tigervnc-debuginfo package and not the tigervnc-debuginfo package as distributed by Rocky-Linux. See How to fix? for Rocky-Linux:8 relevant fixed versions and status.

A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.

CVSS Scores

version 3.1