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CVE-2025-32989 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-082556.html siemens-SADP
http://www.openwall.com/lists/oss-security/2025/07/11/3 CVE
https://access.redhat.com/errata/RHSA-2025:16115 [email protected]
https://access.redhat.com/errata/RHSA-2025:16116 [email protected]
https://access.redhat.com/errata/RHSA-2025:17181 [email protected]

see all 13 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-295Improper Certificate Validation[email protected]

Affected Products

ProductVersions
gnu gnutls
All versions

CPE

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

Remediation

  • No remediation found in references.
redhat openshift container platform
4.0

CPE

  • cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
6.0
7.0
8.0
9.0
10.0

CPE

  • 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:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

23 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-32989
NVD Published Date:
Jul 10, 2025
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2025-32989 Details - Not Deferred