Fedora Core 1 : utempter-0.5.5-3.FC1.0 (2004-108)
High Nessus Plugin ID 13690
SynopsisThe remote Fedora Core host is missing a security update.
DescriptionTopic: An updated utempter package that fixes a potential symlink vulnerability is now available.
Problem Description: Utempter is a utility that allows terminal applications such as xterm and screen to update utmp and wtmp without requiring root privileges.
Steve Grubb discovered a flaw in Utempter which allowed device names containing directory traversal sequences such as '/../'. In combination with an application that trusts the utmp or wtmp files, this could allow a local attacker the ability to overwrite privileged files using a symlink.
Users should upgrade to this new version of utempter, which fixes this vulnerability.
Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected utempter and / or utempter-debuginfo packages.