5.3

CVE-2025-32989

Gnutls: vulnerability in gnutls sct extension parsing

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gnu ≫ Gnutls Version -
Redhat ≫ Enterprise Linux Version 6.0
Redhat ≫ Enterprise Linux Version 7.0
Redhat ≫ Enterprise Linux Version 8.0
Redhat ≫ Enterprise Linux Version 9.0
Redhat ≫ Enterprise Linux Version 10.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.18% 0.636
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
RedHat 5.3 3.9 1.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE-295 Improper Certificate Validation

The product does not validate, or incorrectly validates, a certificate.

https://bugzilla.redhat.com/show_bug.cgi?id=2359621
Issue Tracking
http://www.openwall.com/lists/oss-security/2025/07/11/3
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://access.redhat.com/errata/RHSA-2026:7477
https://access.redhat.com/errata/RHSA-2025:17181
https://access.redhat.com/errata/RHSA-2025:16115
https://access.redhat.com/errata/RHSA-2025:16116
https://access.redhat.com/errata/RHSA-2025:17348
https://access.redhat.com/errata/RHSA-2025:17361
https://access.redhat.com/errata/RHSA-2025:19088
https://access.redhat.com/errata/RHSA-2025:22529
https://lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.html
https://access.redhat.com/security/cve/CVE-2025-32989
Vendor Advisory