High [CVE-2025-13601] Glib: integer overflow in in g_escape_uri_string
This high-severity Red Hat Linux advisory covers CVE-2025-13601 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.
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Summary
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. Red Hat severity: Moderate — CVSS 7.7 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H).
Weakness: CWE-190.
Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 26 more.
Affected products named by the advisory: Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.6 Telecommunications Update Service; Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions; and 22 more.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 50 minutes ago·verify at source
- glib2-0:2.80.4-10.el10_1.12
- mingw-glib2-0:2.87.0-1.el10
- glib2-0:2.80.4-4.el10_0.8
- glib2-0:2.56.1-11.el7_9
- glib2-0:2.56.4-168.el8_10
- glib2-0:2.56.4-8.el8_2.4
- glib2-0:2.56.4-10.el8_4.4
- glib2-0:2.56.4-158.el8_6.4
- glib2-0:2.56.4-164.el8_8
- glib2-0:2.68.4-18.el9_7.1
- mingw-glib2-0:2.78.6-3.el9
- glib2-0:2.68.4-5.el9_0.4
- glib2-0:2.68.4-7.el9_2.4
- glib2-0:2.68.4-14.el9_4.5
- glib2-0:2.68.4-16.el9_6.4
- rhcos-412.86.202602021310-0
- rhcos-413.92.202602240113-0
- rhcos-414.92.202602171627-0
- rhcos-415.92.202603101737-0
- rhcos-416.94.202602101357-0
- rhcos-417.94.202602090846-0
- rhcos-418.94.202602022246-0
- rhcos-4.19.9.6.202602112047-0
- rhceph/rhceph-8-rhel9:1769512383
- discovery/discovery-server-rhel9:1769104765
- discovery/discovery-ui-rhel9:1769111774
- glib2-main-2.88.0-1.1.hum1
- insights-proxy/insights-proxy-container-rhel9:1770740405
- rhui5/cds-rhel9:1770808689
- rhui5/haproxy-rhel9:1770807477
- rhui5/installer-rhel9:1770646925
- rhui5/rhua-rhel9:1770808765
- RHSA-2026:0975
- RHSA-2026:18344
- RHSA-2026:1327
- RHSA-2026:1608
- RHSA-2026:0991
- RHSA-2026:1627
- RHSA-2026:1626
- RHSA-2026:1624
- RHSA-2026:1625
- RHSA-2026:0936
- RHSA-2026:18705
- RHSA-2026:1323
- RHSA-2026:1324
- RHSA-2026:1326
- RHSA-2026:1465
- RHSA-2026:2064
- RHSA-2026:3415
- RHSA-2026:2974
Official advisory · high-confidence parse· fetched 50 minutes ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 50 minutes ago·verify at source
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