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CVE-2013-4314

Published: 9 September 2013

The X509Extension in pyOpenSSL before 0.13.1 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.

Priority

Medium

Status

Package Release Status
pyopenssl
Launchpad, Ubuntu, Debian
upstream Needs triage

lucid
Released (0.10-1ubuntu0.1)
precise
Released (0.12-1ubuntu2.1)
quantal
Released (0.13-2ubuntu1.1)
raring
Released (0.13-2ubuntu3.1)
Patches:
upstream: http://bazaar.launchpad.net/~exarkun/pyopenssl/trunk/revision/169