iDEFENSE Security Advisory 12.23.02 – Easy Software Products’ Common Unix Printing System (CUPS) and Xpdf contains an integer overflow which allows local users to access to privileges of the lp user.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/30636/12.23.02.txt
Source: https://packetstormsecurity.com/files/30636/iDEFENSE-Security-Advisory-2002-12-23.t.html