Mozilla Firefox before 36.0 does not properly recognize the equivalence of domain names with and without a trailing . (dot) character, which allows man-in-the-middle attackers to bypass the HPKP and HSTS protection mechanisms by constructing a URL with this character and leveraging access to an X.509 certificate for a domain with this character.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0832
Reference (s):
- BID:72752
- URL: http://www.securityfocus.com/bid/72752
- http://www.mozilla.org/security/announce/2015/mfsa2015-13.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- https://bugzilla.mozilla.org/show_bug.cgi?id=1065909