CVE-2024-31083

Xorg-x11-server: use-after-free in procrenderaddglyphs

HIGH
7.8
CVSS Score
Published: April 5, 2024 at 12:04 PM UTC
Updated: June 17, 2026 at 07:27 AM UTC
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Severity
HIGH7.8
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

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.

Affected

We have no canonical product record for this CVE. The source names may not have matched any product.

References (24)

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHredhat
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-416

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