SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionNikos Mavrogiannopoulos discovered that GnuTLS incorrectly handled certificate verification functions. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited with specially crafted certificates to view sensitive information.
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 libgnutls26 package.