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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 5.3
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS probability
- 1.29%
- CWE
- CWE-295
- Published
- 2025-07-10
- Last modified
- 2026-09-01
Affected products
- Red Hat Red Hat Enterprise Linux 10
- Red Hat Red Hat Enterprise Linux 9
- Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
- Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support
- Red Hat Red Hat Ceph Storage 7
- Red Hat Red Hat Discovery 2
- Red Hat Red Hat Insights proxy 1.5
- Red Hat Red Hat Ceph Storage 7
Weakness type
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