Ubuntu 18.04 LTS : base-files vulnerability (USN-3748-1)
Medium Nessus Plugin ID 112058
SynopsisThe remote Ubuntu host is missing a security-related patch.
DescriptionSander Bos discovered that the MOTD update script incorrectly handled temporary files. A local attacker could use this issue to cause a denial of service, or possibly escalate privileges if kernel symlink restrictions were disabled.
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 base-files package.