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=========================================================== Ubuntu Security Notice USN-410-1 January 18, 2007 kdegraphics, koffice, poppler vulnerability CVE-2007-0104 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 5.10 Ubuntu 6.06 LTS Ubuntu 6.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 5.10: kpdf 4:3.4.3-0ubuntu2.6 kword 1:1.4.1-0ubuntu7.5 libpoppler0c2 0.4.2-0ubuntu6.8 Ubuntu 6.06 LTS: kword 1:1.5.0-0ubuntu9.1 libpoppler1 0.5.1-0ubuntu7.1 Ubuntu 6.10: kword 1:1.5.2-0ubuntu2.1 libpoppler1 0.5.4-0ubuntu4.1 In general, a standard system upgrade is sufficient to effect the necessary changes. Details follow: The poppler PDF loader library did not limit the recursion depth of the page model tree. By tricking a user into opening a specially crafter PDF file, this could be exploited to trigger an infinite loop and eventually crash an application that uses this library. kpdf in Ubuntu 5.10, and KOffice in all Ubuntu releases contains a copy of this code and thus is affected as well.