Red Hat Security Advisory: glib2 security update
Two security vulnerabilities have been identified in GLib, a core C library used in GNOME and other applications. The first vulnerability (CVE-2025-14087) is a buffer underflow in the GVariant parser that can lead to heap corruption. The second vulnerability (CVE-2025-14512) involves an integer overflow in GLib's GIO attribute escaping, causing a heap buffer overflow. These issues affect Red Hat Enterprise Linux 9. 0 and related distributions. Red Hat has released security updates addressing these vulnerabilities. The overall security impact is rated as moderate by Red Hat Product Security.
AI Analysis
Technical Summary
GLib, a fundamental library providing core application building blocks for C applications, contains two vulnerabilities: a buffer underflow in the GVariant parser (CVE-2025-14087) leading to heap corruption, and an integer overflow in GIO attribute escaping (CVE-2025-14512) causing a heap buffer overflow. These vulnerabilities affect Red Hat Enterprise Linux 9.0 and related packages. Red Hat has issued a security advisory (RHSA-2026:19459) and released updated glib2 packages to remediate these issues. No CVSS scores are provided in the advisory, but the impact is assessed as moderate.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow, which may lead to application crashes or potentially exploitable conditions. Red Hat 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 9.0 that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:19459 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed as available. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: glib2 security update
Description
Two security vulnerabilities have been identified in GLib, a core C library used in GNOME and other applications. The first vulnerability (CVE-2025-14087) is a buffer underflow in the GVariant parser that can lead to heap corruption. The second vulnerability (CVE-2025-14512) involves an integer overflow in GLib's GIO attribute escaping, causing a heap buffer overflow. These issues affect Red Hat Enterprise Linux 9. 0 and related distributions. Red Hat has released security updates addressing these vulnerabilities. The overall security impact is rated as moderate by Red Hat Product Security.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
GLib, a fundamental library providing core application building blocks for C applications, contains two vulnerabilities: a buffer underflow in the GVariant parser (CVE-2025-14087) leading to heap corruption, and an integer overflow in GIO attribute escaping (CVE-2025-14512) causing a heap buffer overflow. These vulnerabilities affect Red Hat Enterprise Linux 9.0 and related packages. Red Hat has issued a security advisory (RHSA-2026:19459) and released updated glib2 packages to remediate these issues. No CVSS scores are provided in the advisory, but the impact is assessed as moderate.
Potential Impact
The vulnerabilities can cause heap corruption and heap buffer overflow, which may lead to application crashes or potentially exploitable conditions. Red Hat 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 9.0 that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2026:19459 and the referenced article https://access.redhat.com/articles/11258. Patch status is confirmed as available. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:19459
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-14512"]
- Cvss Version
- null
Threat ID: 6a16097de29bf47b50649dfb
Added to database: 5/26/2026, 8:58:37 PM
Last enriched: 5/26/2026, 10:50:00 PM
Last updated: 5/27/2026, 4:50:21 AM
Views: 2
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