Vulnerability CVE-2009-5138
Published: 2014-03-06   Modified: 2014-03-07

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.

Type:

CWE-264

 (Permissions, Privileges, and Access Controls)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
GNU -> Gnutls 

 References:
https://gitorious.org/gnutls/gnutls/commit/c8dcbedd1fdc312f5b1a70fcfbc1afe235d800cd
https://bugzilla.redhat.com/show_bug.cgi?id=1069301
http://thread.gmane.org/gmane.comp.security.oss.general/12127
http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/3351/focus=3361
http://secunia.com/advisories/57321
http://secunia.com/advisories/57274
http://secunia.com/advisories/57260
http://secunia.com/advisories/57254
http://rhn.redhat.com/errata/RHSA-2014-0247.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00000.html
http://article.gmane.org/gmane.comp.security.oss.general/12223
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