Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : samba vulnerability (USN-3353-2) (Orpheus' Lyre)
Medium Nessus Plugin ID 101770
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionUSN-3353-1 fixed a vulnerability in Heimdal. This update provides the corresponding update for Samba.
Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered that Samba clients incorrectly trusted unauthenticated portions of Kerberos tickets. A remote attacker could use this to impersonate trusted network servers or perform other attacks.
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 samba-libs package.