Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : shadow vulnerabilities (USN-3276-1)
Medium Nessus Plugin ID 99993
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionSebastian Krahmer discovered integer overflows in shadow utilities. A local attacker could possibly cause them to crash or potentially gain privileges via crafted input. (CVE-2016-6252)
Tobias Stockmann discovered a race condition in su. A local attacker could cause su to send SIGKILL to other processes with root privileges. (CVE-2017-2616).
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 login, passwd and / or uidmap packages.