Vulnerability CVE-2014-1959
Published: 2014-03-06   Modified: 2014-03-07

Description:
lib/x509/verify.c in GnuTLS before 3.1.21 and 3.2.x before 3.2.11 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.

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:
http://seclists.org/oss-sec/2014/q1/344
http://seclists.org/oss-sec/2014/q1/345
http://www.debian.org/security/2014/dsa-2866
http://www.gnutls.org/security.html
http://www.securityfocus.com/bid/65559
http://www.ubuntu.com/usn/USN-2121-1
https://www.gitorious.org/gnutls/gnutls/commit/b1abfe3d182d68539900092eb42fc62cf1bb7e7c
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