full-disclosure - Possible race condition in Symantec AntiVirus Scan Engine for Red Hat Linux during LiveUpdate

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From: Valdis.Kletnieks at vt.edu (Valdis.Kletnieks@...edu)
Subject: Possible race condition in Symantec AntiVirus Scan Engine for Red Hat Linux during LiveUpdate 

On Mon, 16 Feb 2004 16:49:53 +0100, "Dr. Peter Bieringer" said:

> logfile=/tmp/LiveUpdate.log  <---!!!!!!
> 
> Impact:
> Before first run of LiveUpdate (like suggested in doc, user "symantec" does 
> this) a possible race condition via a symlink attack by another user will 
> result in the creation of a new file (as user "symantec") or appending 
> LiveUpdate log to an existent file (owned by user "symantec").

For bonus points, figure out what happens if you reboot and your /etc/fstab has this:

none                    /tmp            tmpfs   mode=1777       0 0

The gift that keeps on giving. ;)
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