Unspecified vulnerability in VMware Player 1.0.x before 1.0.5 and 2.0 before 2.0.1, and Workstation 5.x before 5.5.5 and 6.x before 6.0.1, prevents it from launching, which has unspecified impact, related to untrusted virtual machine images.
http://www.vupen.com/english/advisories/2007/3229
http://www.vmware.com/support/ws6/doc/releasenotes_ws6.html
http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html
http://www.vmware.com/support/player2/doc/releasenotes_player2.html
http://www.vmware.com/support/player/doc/releasenotes_player.html
http://security.gentoo.org/glsa/glsa-200711-23.xml
http://secunia.com/advisories/27706
http://secunia.com/advisories/26890
http://lists.grok.org.uk/pipermail/full-disclosure/2007-September/065902.html