Foxit Reader 2.3 before Build 3902 and 3.0 before Build 1506, including 3.0.2009.1301, does not properly handle a JBIG2 symbol dictionary segment with zero new symbols, which allows remote attackers to execute arbitrary code via a crafted PDF file that triggers a dereference of an uninitialized memory location.
https://exchange.xforce.ibmcloud.com/vulnerabilities/49135
http://www.vupen.com/english/advisories/2009/0634
http://www.securitytracker.com/id?1021822
http://www.securityfocus.com/bid/34035
http://www.securityfocus.com/archive/1/501590/100/0/threaded
http://www.foxitsoftware.com/pdf/reader/security.htm#Processing