CVE-2024-31083

HIGH
MEDIUM Priority: 0.14 BB Relevance: 41/100
Published: 2024-04-05 Modified: 2026-11-04 First seen: 2026-11-04 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
— — 21.1.12

References & Advisories (24)

https://access.redhat.com/errata/RHSA-2024:1785
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2036
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2037
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2038
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2039
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2040
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2041
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2042
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2080
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:2616
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3258
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3261
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:3343
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:9093
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2024:9122
vendor-advisory x_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:12751
vendor-advisory x_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2272000
issue-tracking x_refsource_REDHAT

Bug Bounty Relevance

41 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

1.86%
Raw Score 0.018590
Percentile 79.6%
Date 2026-11-14

EPSS Trend

2026-11-14
0.01859
2026-11-13
0.01859
2026-11-12
0.01859
2026-11-10
0.01859
2026-11-09
0.01859
2026-11-08
0.01859
2026-11-07
0.01859
2026-11-06
0.01859
2026-11-05
0.01859
2026-11-04
0.01859

Intelligence Sources

mitre ref →
nvd ref →