Medium [CVE-2025-14087] buffer underflow in gvariant parser leads to heap corruption
This medium-severity Red Hat Linux advisory covers CVE-2025-14087 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support.
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Summary
A flaw was found in GLib (Gnome Lib). This vulnerability allows a remote attacker to cause heap corruption, leading to a denial of service or potential code execution via a buffer-underflow in the GVariant parser when processing maliciously crafted input strings.
The highest threat is to system availability due to potential application crashes when processing maliciously crafted input strings through GLib's GVariant parser. This issue affects applications that utilize g_variant_parse() on untrusted data, leading to memory corruption and possible denial of service.
Red Hat severity: Moderate — CVSS 5.6 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L). 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 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; and 17 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 8 days ago·verify at source
- glib2-0:2.80.4-10.el10_1.13
- glib2-0:2.80.4-12.el10_2.13
- glib2-0:2.80.4-4.el10_0.9
- glib2-0:2.56.1-12.el7_9
- mingw-glib2-0:2.70.1-9.el8_10
- glib2-0:2.56.4-169.el8_10
- glib2-0:2.56.4-10.el8_4.5
- glib2-0:2.56.4-158.el8_6.5
- glib2-0:2.56.4-165.el8_8
- glib2-0:2.68.4-18.el9_7.2
- glib2-0:2.68.4-19.el9_8.1
- glib2-0:2.68.4-5.el9_0.5
- glib2-0:2.68.4-7.el9_2.5
- glib2-0:2.68.4-14.el9_4.6
- glib2-0:2.68.4-16.el9_6.5
- rhaiis/model-opt-cuda-rhel9:1780681984
- discovery/discovery-server-rhel9:1782159791
- discovery/discovery-ui-rhel9:1782166952
- glib2-main-2.88.0-1.1.hum1
- insights-proxy/insights-proxy-container-rhel9:1780420428
- rhui5/cds-rhel9:1779798159
- rhui5/haproxy-rhel9:1779798164
- rhui5/installer-rhel9:1779798165
- rhui5/rhua-rhel9:1779798222
- RHSA-2026:15969
- RHSA-2026:19148
- RHSA-2026:19567
- RHSA-2026:19566
- RHSA-2026:49512
- RHSA-2026:15953
- RHSA-2026:19565
- RHSA-2026:19524
- RHSA-2026:19523
- RHSA-2026:15971
- RHSA-2026:19361
- RHSA-2026:19459
- RHSA-2026:19460
- RHSA-2026:19452
- RHSA-2026:19457
- RHSA-2026:25096
- RHSA-2026:29197
- RHSA-2026:7461
- RHSA-2026:22634
- RHSA-2026:21275
Official advisory · high-confidence parse· fetched 8 days 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 8 days ago·verify at source
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