Riskcovery

CVE-2025-32989

Gnutls: vulnerability in gnutls sct extension parsing

State
Published
Severity
5.3 Medium
Published
Jul 10, 2025
Updated
Oct 15, 2026
Reserved
Apr 15, 2025

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.15.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:Nredhat

Weaknesses

  • CWE-295 Improper Certificate Validation

Affected Products

ProductVersions
libgnutls
  • before 3.8.10Affected
Red Hat Enterprise Linux 10Red Hat
  • 0:3.8.9-9.el10_0.14 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:3.8.3-6.el9_6.2 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:3.8.3-6.el9_6.2 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:3.7.6-21.el9_2.4 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:3.8.3-4.el9_4.4 and laterNot affected
Red Hat Ceph Storage 7Red Hat
  • 7 and laterNot affected
Red Hat Discovery 2Red Hat
  • 2.3.0-1760554384 and laterNot affected
Red Hat Hardened ImagesRed Hat
  • 3.8.12-1.1.hum1 and laterNot affected
Red Hat Insights proxy 1.5Red Hat
  • 1.5.7-1759331989 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 8Red Hat
        Red Hat OpenShift Container Platform 4Red Hat
          Red Hat OpenShift Container Platform 4Red Hat

            References

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