Integer Overflow or Wraparound Affecting glib2 package, versions <0:2.56.4-164.el8_8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-RHEL8-GLIB2-15195199
  • published3 Feb 2026
  • disclosed24 Nov 2025

Introduced: 24 Nov 2025

CVE-2025-13601  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade RHEL:8 glib2 to version 0:2.56.4-164.el8_8 or higher.
This issue was patched in RHSA-2026:1625.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glib2 package and not the glib2 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A heap-based buffer overflow problem was found in glib through an incorrect calculation of buffer size in the g_escape_uri_string() function. If the string to escape contains a very large number of unacceptable characters (which would need escaping), the calculation of the length of the escaped string could overflow, leading to a potential write off the end of the newly allocated string.

CVSS Base Scores

version 3.1