CVE-2025-32989

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-32989
A heap-buffer-overread vulnerability was found in GnuTLS in how it handles the Certificate Transparency (CT) Signed Certificate Timestamp (SCT) extension during X.509 certificate parsing. This flaw allows a malicious user to create a certificate containing a malformed SCT extension (OID 1.3.6.1.4.1.11129.2.4.2) that contains sensitive data. This issue leads to the exposure of confidential information when GnuTLS verifies certificates from certain websites when the certificate (SCT) is not checked correctly.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://access.redhat.com/security/cve/CVE-2025-32989 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2359621 Issue Tracking
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:gnutls:-:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
History

15 Aug 2025, 19:35

Type Values Removed Values Added
References () https://access.redhat.com/security/cve/CVE-2025-32989 - () https://access.redhat.com/security/cve/CVE-2025-32989 - Vendor Advisory
References () https://bugzilla.redhat.com/show_bug.cgi?id=2359621 - () https://bugzilla.redhat.com/show_bug.cgi?id=2359621 - Issue Tracking
First Time Redhat enterprise Linux
Gnu
Redhat
Gnu gnutls
Redhat openshift Container Platform
CPE cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:a:gnu:gnutls:-:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

10 Jul 2025, 13:17

Type Values Removed Values Added
Summary
  • (es) Se detectó una vulnerabilidad de sobrelectura del búfer de montón en GnuTLS en la gestión de la extensión de marca de tiempo del certificado firmado (SCT) de Transparencia de Certificado (CT) durante el análisis de certificados X.509. Esta falla permite a un usuario malintencionado crear un certificado con una extensión SCT mal formada (OID 1.3.6.1.4.1.11129.2.4.2) que contiene datos confidenciales. Este problema provoca la exposición de información confidencial cuando GnuTLS verifica certificados de ciertos sitios web cuando la SCT no se verifica correctamente.

10 Jul 2025, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-07-10 08:15

Updated : 2025-08-15 19:35

NVD link : CVE-2025-32989

Mitre link : CVE-2025-32989

CVE.ORG link : CVE-2025-32989

JSON object : View

Products Affected

redhat

  • enterprise_linux
  • openshift_container_platform

gnu

  • gnutls
CWE
CWE-295

Improper Certificate Validation