Ubuntu 12.04 LTS / 14.04 LTS / 14.10 : firefox vulnerability (USN-2557-1)
Medium Nessus Plugin ID 82643
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionMuneaki Nishimura discovered a flaw in Mozilla's HTTP Alternative Services implementation which meant SSL certificate verification could be bypassed in some circumstances. A remote attacker could potentially exploit this to conduct a man in the middle attack. (CVE-2015-0799).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected firefox package.