Buffer underflow in the rgbimg module in Python 2.5 allows remote attackers to cause a denial of service (application crash) via a large ZSIZE value in a black-and-white (aka B/W) RGB image that triggers an invalid pointer dereference.Referenceshttp://secunia.com/advisories/43068http://support.apple.com/kb/HT4435http://www.vupen.com/english/advisories/2011/0212http://secunia.com/advisories/43364http://www.vupen.com/english/advisories/2011/0413http://lists.apple.com/archives/security-announce/2010//Nov/msg00000.htmlhttp://www.vupen.com/english/advisories/2011/0122https://bugzilla.redhat.com/show_bug.cgi?id=541698http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.htmlhttp://secunia.com/advisories/42888http://www.securityfocus.com/bid/40361http://www.redhat.com/support/errata/RHSA-2011-0027.htmlhttp://www.mandriva.com/security/advisories?name=MDVSA-2010:215http://bugs.python.org/issue8678http://www.redhat.com/support/errata/RHSA-2011-0260.html
