Format string vulnerability in the Cl_GetPackets function in cl_main.c in the client in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote Doomsday servers to execute arbitrary code via format string specifiers in a PSV_CONSOLE_TEXT message.
aluigi.org/poc/dumsdei.zip
bugs.gentoo.org/show_bug.cgi?id=190835
secunia.com/advisories/26524
secunia.com/advisories/28821
security.gentoo.org/glsa/glsa-200802-02.xml
securityreason.com/securityalert/3084
www.securityfocus.com/archive/1/478077/100/0/threaded
www.securityfocus.com/bid/25483
exchange.xforce.ibmcloud.com/vulnerabilities/36337