CVE-2009-5138

GnuTLS < 2.7.6 - Certificate Validation Bypass via X.509 V1 Intermediate CA

Title source: llm
STIX 2.1

Description

GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.

References (14)

Core 14
Core References
Vendor Advisory vendor-advisory x_refsource_redhat
http://rhn.redhat.com/errata/RHSA-2014-0247.html
Various Sources mailing-list x_refsource_mlist
http://article.gmane.org/gmane.comp.security.oss.general/12223
Issue Tracking x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=1069301
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/57321
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/57260
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/57274
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/57254
Various Sources mailing-list x_refsource_mlist
http://thread.gmane.org/gmane.comp.security.oss.general/12127

Scores

EPSS 0.0085
EPSS Percentile 75.0%

Details

CWE
CWE-264
Status published
Products (6)
gnu/gnutls 2.7.0
gnu/gnutls 2.7.1
gnu/gnutls 2.7.2
gnu/gnutls 2.7.3
gnu/gnutls 2.7.4
gnu/gnutls < 2.7.5
Published Mar 07, 2014
Tracked Since Feb 18, 2026