Red Hat Security Advisory: glib2 security update
GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) * glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow (CVE-2025-14512) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
AI Analysis
Technical Summary
GLib, which provides fundamental application building blocks for C libraries and applications including the GNOME core object system and utility functions, contains two security flaws. CVE-2025-14087 is a buffer underflow in the GVariant parser that can cause heap corruption. CVE-2025-14512 is an integer overflow in the GLib GIO attribute escaping functionality that results in a heap buffer overflow. Both vulnerabilities have been addressed in updated glib2 packages for Red Hat Enterprise Linux 10 and its derivatives. Red Hat has rated these issues as moderate severity and published an advisory (RHSA-2026:19148) with details and remediation instructions.
Potential Impact
Successful exploitation of CVE-2025-14087 can lead to heap corruption due to a buffer underflow in the GVariant parser. CVE-2025-14512 can cause a heap buffer overflow triggered by an integer overflow in GLib's GIO attribute escaping. These memory corruption issues could potentially lead to application crashes or other undefined behavior. No known exploits in the wild have been reported. The overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated glib2 packages that address these vulnerabilities for Red Hat Enterprise Linux 10 and related variants. Users should apply the security update as described in Red Hat advisory RHSA-2026:19148 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. No alternative mitigations or workarounds are indicated in the advisory.
Red Hat Security Advisory: glib2 security update
Description
GLib provides the core application building blocks for libraries and applications written in C. It provides the core object system used in GNOME, the main loop implementation, and a large set of utility functions for strings and common data structures. Security Fix(es): * glib: GLib: Buffer underflow in GVariant parser leads to heap corruption (CVE-2025-14087) * glib: Integer Overflow in GLib GIO Attribute Escaping Causes Heap Buffer Overflow (CVE-2025-14512) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GLib, which provides fundamental application building blocks for C libraries and applications including the GNOME core object system and utility functions, contains two security flaws. CVE-2025-14087 is a buffer underflow in the GVariant parser that can cause heap corruption. CVE-2025-14512 is an integer overflow in the GLib GIO attribute escaping functionality that results in a heap buffer overflow. Both vulnerabilities have been addressed in updated glib2 packages for Red Hat Enterprise Linux 10 and its derivatives. Red Hat has rated these issues as moderate severity and published an advisory (RHSA-2026:19148) with details and remediation instructions.
Potential Impact
Successful exploitation of CVE-2025-14087 can lead to heap corruption due to a buffer underflow in the GVariant parser. CVE-2025-14512 can cause a heap buffer overflow triggered by an integer overflow in GLib's GIO attribute escaping. These memory corruption issues could potentially lead to application crashes or other undefined behavior. No known exploits in the wild have been reported. The overall security impact is rated moderate by Red Hat.
Mitigation Recommendations
Red Hat has released updated glib2 packages that address these vulnerabilities for Red Hat Enterprise Linux 10 and related variants. Users should apply the security update as described in Red Hat advisory RHSA-2026:19148 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches is the recommended remediation. No alternative mitigations or workarounds are indicated in the advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19148
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-14512"]
- Cvss Version
- null
Threat ID: 6a16097ee29bf47b5064a9b2
Added to database: 05/26/2026, 20:58:38 UTC
Last enriched: 07/14/2026, 10:53:32 UTC
Last updated: 07/31/2026, 19:22:53 UTC
Views: 81
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