Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : c-ares vulnerability (USN-3395-1)
Medium Nessus Plugin ID 102583
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionIt was discovered that c-ares incorrectly handled certain NAPTR responses. A remote attacker could possibly use this issue to cause applications using c-ares to crash, resulting in a denial of service.
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 libc-ares2 package.