CVE record · CVE-2025-4373

Glib: buffer underflow on glib through glib/gstring.c via function g_string_insert_unichar

CVSS 4.8 MediumEPSS 0.0064 · 50th percentile

Published by the CVE Program (CNA: redhat) at 6 May 2025, 14:48 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Not given	Not given Package name: glib https://gitlab.gnome.org/GNOME/glib	affected before 2.84.2 semver Other versions: unaffected
Red Hat	Red Hat Enterprise Linux 10 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.80.4-4.el10_0.6 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-166.el8_10 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.2 Advanced Update Support Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-8.el8_2.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-10.el8_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-10.el8_4.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-158.el8_6.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Telecommunications Update Service Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-158.el8_6.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-158.el8_6.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Telecommunications Update Service Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-162.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.56.4-162.el8_8 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.68.4-16.el9_6.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.68.4-16.el9_6.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.68.4-5.el9_0.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.68.4-7.el9_2.2 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 9.4 Extended Update Support Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	unaffected 0:2.68.4-14.el9_4.3 to before * rpm Other versions: affected
Red Hat	Red Hat Insights proxy 1.5 Package name: insights-proxy/insights-proxy-container-rhel9 https://catalog.redhat.com/software/containers/	unaffected 1.5.5-1754504343 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-agent-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265330 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-all-in-one-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265394 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-collector-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265332 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-es-index-cleaner-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265435 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-es-rollover-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265342 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-ingester-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265332 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-operator-bundle https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753269432 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-query-rhel8 https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265411 to before * rpm Other versions: affected
Red Hat	Red Hat OpenShift distributed tracing 3.6.0 Package name: rhosdt/jaeger-rhel8-operator https://catalog.redhat.com/software/containers/	unaffected rhosdt-3.6-1753265314 to before * rpm Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: bootc https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: glycin-loaders https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: loupe https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 10 Package name: mingw-glib2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 6 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 7 Package name: glib2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: librsvg2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 8 Package name: mingw-glib2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: bootc https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: librsvg2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected
Red Hat	Red Hat Enterprise Linux 9 Package name: mingw-glib2 https://access.redhat.com/downloads/content/package-browser/	No versions given Other versions: affected

Identifiers: CVE-2025-4373
CNA: redhat
Weakness (CWE): CWE-124
Tags: Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 8.2 Advanced Update 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
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
Memory corruption
Published: 6 May 2025
Updated: 5 Nov 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
4.8	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L	CNA (redhat)

CISA KEV Not listed.
EPSS 0.0064, the 50th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

6 May 2025, 14:48 UTC Confirmed by the CVE List
6 May 2025, 15:16 UTC Confirmed by NVD

Sources

References from the CNA

access.redhat.com/errata/RHSA-2025:10855 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:11140 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:11327 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:11373 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:11374 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:11662 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:12275 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:13335 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:14988 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:14989 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:14990 vendor-advisoryredhat
access.redhat.com/errata/RHSA-2025:14991 vendor-advisoryredhat
access.redhat.com/security/cve/CVE-2025-4373 vdb-entryredhat
bugzilla.redhat.com/show_bug.cgi?id=2364265 issue-trackingredhat
gitlab.gnome.org/GNOME/glib/-/issues/3677

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.