Medium severity5.3NVD Advisory· Published Jul 10, 2025· Updated May 12, 2026
CVE-2025-32989
CVE-2025-32989
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.
Affected products
7- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*+ 4 more
- cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
13- access.redhat.com/security/cve/CVE-2025-32989nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue Tracking
- www.openwall.com/lists/oss-security/2025/07/11/3nvd
- access.redhat.com/errata/RHSA-2025:16115nvd
- access.redhat.com/errata/RHSA-2025:16116nvd
- access.redhat.com/errata/RHSA-2025:17181nvd
- access.redhat.com/errata/RHSA-2025:17348nvd
- access.redhat.com/errata/RHSA-2025:17361nvd
- access.redhat.com/errata/RHSA-2025:19088nvd
- access.redhat.com/errata/RHSA-2025:22529nvd
- access.redhat.com/errata/RHSA-2026:7477nvd
- cert-portal.siemens.com/productcert/html/ssa-082556.htmlnvd
- lists.gnupg.org/pipermail/gnutls-help/2025-July/004883.htmlnvd
News mentions
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