Adobe Reader and Acrobat 9.x before 9.5.4, 10.x before 10.1.6, and 11.x before 11.0.02 allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted PDF document, as exploited in the wild in February 2013.
http://www.kb.cert.org/vuls/id/422807
http://www.adobe.com/support/security/advisories/apsa13-02.html
http://security.gentoo.org/glsa/glsa-201308-03.xml
http://rhn.redhat.com/errata/RHSA-2013-0551.html
http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00024.html
http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00023.html
http://lists.opensuse.org/opensuse-security-announce/2013-02/msg00021.html