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 essential application building blocks for C libraries and applications including the GNOME object system and utility functions, contains two vulnerabilities. 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 GIO attribute escaping mechanism that results in a heap buffer overflow. Both vulnerabilities could lead to memory corruption issues. Red Hat has issued security updates for Red Hat Enterprise Linux 8.4 Extended Life Cycle and related variants to fix these issues.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow in applications using GLib, potentially leading to application crashes or other undefined behavior. The advisory rates the security impact as moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated glib2 packages for Red Hat Enterprise Linux 8.4 Extended Life Cycle and related variants that address these vulnerabilities. Users should apply these official security updates as described in the Red Hat advisory RHSA-2026:19565. No additional mitigation steps are indicated beyond applying the update.
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 essential application building blocks for C libraries and applications including the GNOME object system and utility functions, contains two vulnerabilities. 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 GIO attribute escaping mechanism that results in a heap buffer overflow. Both vulnerabilities could lead to memory corruption issues. Red Hat has issued security updates for Red Hat Enterprise Linux 8.4 Extended Life Cycle and related variants to fix these issues.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow in applications using GLib, potentially leading to application crashes or other undefined behavior. The advisory rates the security impact as moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated glib2 packages for Red Hat Enterprise Linux 8.4 Extended Life Cycle and related variants that address these vulnerabilities. Users should apply these official security updates as described in the Red Hat advisory RHSA-2026:19565. No additional mitigation steps are indicated beyond applying the update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19565
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-14512"]
- Cvss Version
- null
Threat ID: 6a16097de29bf47b506498d5
Added to database: 05/26/2026, 20:58:37 UTC
Last enriched: 07/14/2026, 10:51:59 UTC
Last updated: 07/31/2026, 19:22:53 UTC
Views: 40
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