CVE-2013-4238 Information

Description

The ssl.match_hostname function in the SSL module in Python 2.6 through 3.4 does not properly handle a ‘\0’ character in a domain name in the Subject Alternative Name field of an X.509 certificate which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority a related issue to CVE-2009-2408.

Reference

http://bugs.python.org/issue18709 http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00026.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00027.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00028.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00029.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00042.html http://lists.opensuse.org/opensuse-updates/2013-09/msg00043.html http://rhn.redhat.com/errata/RHSA-2013-1582.html http://seclists.org/fulldisclosure/2014/Dec/23 http://www.debian.org/security/2014/dsa-2880 http://www.securityfocus.com/archive/1/534161/100/0/threaded http://www.ubuntu.com/usn/USN-1982-1 http://www.vmware.com/security/advisories/VMSA-2014-0012.html https://bugzilla.redhat.com/show_bug.cgi?id=996381