Red Hat Bugzilla – Bug 492098
XFree86-xfs, xorg-x11-xfs: Unsafe usage of temporary file
Last modified: 2009-03-25 10:21:06 EDT
A security flaw was found in the start() initscript of font server for XFree86/X.Org server. An attacker could use this flaw to cause
a symlink attack.
The Red Hat Security Response Team has rated this issue as having
low security impact, a future update may address this flaw.
More information regarding issue severity can be found here:
Doesn't apply to our xfs init script. The debian script tries to save the contents of a non-directory /tmp/.font-unix file if it exists, which is pretty stupid. The only reason that file would exists would be an exploit attempt. We just delete it if it's not a directory.
See also bug #242903.
(In reply to comment #4)
> See also bug #242903.
Right, this indeed looks like Debian specific. Our init script issues were addressed via CVE-2007-3103. The only question that remains is why that issue is not fixed in Fedora? We seem to have changed init script in Red Hat Enterprise Linux 4 and 5 to not do chmod/chown, but that change did not make it to Fedora...