Heap-based buffer overflow in the alpha strip capability in libpng 1.2.7 allows context-dependent attackers to cause a denial of service (crash) when the png_do_strip_filler function is used to strip alpha channels out of the image.Referenceshttp://www.redhat.com/support/errata/RHSA-2006-0205.htmlhttps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=179455https://exchange.xforce.ibmcloud.com/vulnerabilities/24396http://securitytracker.com/id?1015617https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10780http://www.vupen.com/english/advisories/2006/0393http://secunia.com/advisories/18654http://security.gentoo.org/glsa/glsa-200812-15.xmlhttp://securitytracker.com/id?1015615http://secunia.com/advisories/33137ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng-1.2.8-README.txthttp://secunia.com/advisories/18863http://www.securityfocus.com/bid/16626
