xpdf -- makeFileKey2() buffer overflow vulnerability

Description:

An iDEFENSE Security Advisory reports:

Remote exploitation of a buffer overflow vulnerability in the xpdf PDF viewer included in multiple Unix and Linux distributions could allow for arbitrary code execution as the user viewing a PDF file.

The vulnerability specifically exists due to insufficient bounds checking while processing a PDF file that provides malicious values in the /Encrypt /Length tag. The offending code can be found in the Decrypt::makeFileKey2 function in the source file xpdf/Decrypt.cc.

References:

• CVE name CVE-2005-0064
• List post: <http://marc.theaimsgroup.com/?l=bugtraq&m=110608898221554>(search)
• URL: <http://www.koffice.org/security/advisory-20050120-1.txt>

Affects:

• xpdf <3.00_6
• kdegraphics <3.3.2_2
• gpdf <2.8.3
• teTeX-base <2.0.2_9
• cups-base <1.1.23.0_3
• koffice <1.3.5_2,1
• pdftohtml <0.36_2

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