CVE-2011-3634
methods/https.cc in apt before 0.8.11 accepts connections when the certificate host name fails validation and Verify-Host is enabled, which allows man-in-the-middle attackers to obtain repository credentials via unspecified vectors.
Date published : 2014-02-28
http://people.canonical.com/~ubuntu-security/cve/2011/CVE-2011-3634.html