Public Date:
1069301: CVE-2009-5138 gnutls: incorrect handling of V1 intermediate certificates

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2009-5138 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the versions of gnutls as shipped with Red Hat Enterprise Linux 6.

CVSS v2 metrics

Base Score 5.8
Base Metrics AV:N/AC:M/Au:N/C:P/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact None

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 5 (gnutls) RHSA-2014:0247 2014-03-03

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 gnutls Not affected
Red Hat Enterprise Linux 6 gnutls Not affected
Red Hat Enterprise Linux 6 mingw32-gnutls Will not fix
Last Modified

CVE description copyright © 2017, The MITRE Corporation