Red Hat Security Advisory: gnutls security update
A denial of service vulnerability (CVE-2025-14831) exists in the GnuTLS library used by Red Hat Enterprise Linux 9. 2 and related products. The issue arises from excessive resource consumption during certificate verification, potentially allowing an attacker to disrupt service availability. Red Hat has issued a security advisory with an update to address this moderate severity vulnerability. The advisory provides updated packages for affected versions and instructions for applying the fix.
AI Analysis
Technical Summary
The vulnerability CVE-2025-14831 affects the GnuTLS library, which implements cryptographic protocols such as SSL, TLS, and DTLS. It allows a denial of service condition caused by excessive resource consumption during certificate verification. This issue impacts multiple Red Hat Enterprise Linux 9.2 variants and related packages. Red Hat Product Security has rated the security impact as moderate and released updated packages to remediate the vulnerability. The advisory references a bug fix (BZ-2423177) and provides detailed package updates for affected architectures.
Potential Impact
An attacker could exploit this vulnerability to cause a denial of service by triggering excessive resource consumption during certificate verification in GnuTLS. This could disrupt the availability of services relying on the affected library. There are no known exploits in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated gnutls packages that fix this vulnerability. Users of affected Red Hat Enterprise Linux 9.2 versions should apply the security update as described in the Red Hat advisory RHSA-2026:6737 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches will remediate the issue. No additional mitigation steps are indicated by the vendor.
Red Hat Security Advisory: gnutls security update
Description
A denial of service vulnerability (CVE-2025-14831) exists in the GnuTLS library used by Red Hat Enterprise Linux 9. 2 and related products. The issue arises from excessive resource consumption during certificate verification, potentially allowing an attacker to disrupt service availability. Red Hat has issued a security advisory with an update to address this moderate severity vulnerability. The advisory provides updated packages for affected versions and instructions for applying the fix.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2025-14831 affects the GnuTLS library, which implements cryptographic protocols such as SSL, TLS, and DTLS. It allows a denial of service condition caused by excessive resource consumption during certificate verification. This issue impacts multiple Red Hat Enterprise Linux 9.2 variants and related packages. Red Hat Product Security has rated the security impact as moderate and released updated packages to remediate the vulnerability. The advisory references a bug fix (BZ-2423177) and provides detailed package updates for affected architectures.
Potential Impact
An attacker could exploit this vulnerability to cause a denial of service by triggering excessive resource consumption during certificate verification in GnuTLS. This could disrupt the availability of services relying on the affected library. There are no known exploits in the wild at this time. The impact is rated moderate by Red Hat Product Security.
Mitigation Recommendations
Red Hat has released updated gnutls packages that fix this vulnerability. Users of affected Red Hat Enterprise Linux 9.2 versions should apply the security update as described in the Red Hat advisory RHSA-2026:6737 and the referenced article https://access.redhat.com/articles/11258. Applying these official patches will remediate the issue. 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-2026:6737
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a1f4e86e29bf47b5007e4f5
Added to database: 6/2/2026, 9:43:34 PM
Last enriched: 6/2/2026, 9:55:17 PM
Last updated: 6/3/2026, 5:07:36 AM
Views: 2
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