rxvt 2.6.4 opens a terminal window on :0 if the DISPLAY environment variable is not set, which might allow local users to hijack X11 connections. NOTE: it was later reported that rxvt-unicode, mrxvt, aterm, multi-aterm, and wterm are also affected. NOTE: realistic attack scenarios require that the victim enters a command on the wrong machine.
http://www.securityfocus.com/bid/28512
http://www.mandriva.com/security/advisories?name=MDVSA-2008:221
http://www.mandriva.com/security/advisories?name=MDVSA-2008:161
http://security.gentoo.org/glsa/glsa-200805-03.xml
http://secunia.com/advisories/31687
http://secunia.com/advisories/30229
http://secunia.com/advisories/30227
http://secunia.com/advisories/30226
http://secunia.com/advisories/30225
http://secunia.com/advisories/30224
http://secunia.com/advisories/29576
http://lists.opensuse.org/opensuse-security-announce/2008-08/msg00006.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=469296
http://article.gmane.org/gmane.comp.security.oss.general/122