libpng is vulnerable to arbitrary code execution. The vulnerability exists as a buffer overflow flaw was found in the way libpng processed certain PNG image files. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash or, potentially, execute arbitrary code with the privileges of the user running the application.
lists.apple.com/archives/Security-announce/2011//Oct/msg00003.html
lists.fedoraproject.org/pipermail/package-announce/2011-July/063118.html
secunia.com/advisories/45046
secunia.com/advisories/45405
secunia.com/advisories/45415
secunia.com/advisories/45460
secunia.com/advisories/45461
secunia.com/advisories/45492
secunia.com/advisories/49660
security.gentoo.org/glsa/glsa-201206-15.xml
support.apple.com/kb/HT5002
www.debian.org/security/2011/dsa-2287
www.libpng.org/pub/png/libpng.html
www.mandriva.com/security/advisories?name=MDVSA-2011:151
www.openwall.com/lists/oss-security/2011/07/13/2
www.redhat.com/support/errata/RHSA-2011-1104.html
www.redhat.com/support/errata/RHSA-2011-1105.html
www.securityfocus.com/bid/48660
www.ubuntu.com/usn/USN-1175-1
access.redhat.com/errata/RHSA-2011:1105
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=720607
exchange.xforce.ibmcloud.com/vulnerabilities/68538