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, a fundamental library for C applications and GNOME, contains two vulnerabilities: a buffer underflow in the GVariant parser (CVE-2025-14087) that leads to heap corruption, and an integer overflow in GIO attribute escaping (CVE-2025-14512) causing a heap buffer overflow. These vulnerabilities could potentially lead to memory corruption issues. Red Hat has released security updates for Red Hat Enterprise Linux 8 and related variants to fix these issues. The advisory RHSA-2026:15953 provides details on the affected packages and remediation steps.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow, which may lead to application crashes or potentially allow an attacker to execute arbitrary code or cause denial of service. The impact is rated as moderate by Red Hat. 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 and related distributions that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:15953 and the related article https://access.redhat.com/articles/11258. Since official patches are available, applying these updates is the recommended mitigation.
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, a fundamental library for C applications and GNOME, contains two vulnerabilities: a buffer underflow in the GVariant parser (CVE-2025-14087) that leads to heap corruption, and an integer overflow in GIO attribute escaping (CVE-2025-14512) causing a heap buffer overflow. These vulnerabilities could potentially lead to memory corruption issues. Red Hat has released security updates for Red Hat Enterprise Linux 8 and related variants to fix these issues. The advisory RHSA-2026:15953 provides details on the affected packages and remediation steps.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow, which may lead to application crashes or potentially allow an attacker to execute arbitrary code or cause denial of service. The impact is rated as moderate by Red Hat. 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 and related distributions that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:15953 and the related article https://access.redhat.com/articles/11258. Since official patches are available, applying these updates is the recommended mitigation.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:15953
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-14512"]
- Cvss Version
- null
Threat ID: 6a16097ee29bf47b5064a9b9
Added to database: 05/26/2026, 20:58:38 UTC
Last enriched: 07/14/2026, 10:53:52 UTC
Last updated: 07/31/2026, 19:22:53 UTC
Views: 111
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.