http://www.darkreading.com/securityservices/security/app-security/showArticle.jhtml;jsessionid=VLTRJEST1POHSQSNDLOSKHSCJUNN2JVN?articleID=217701908

Hacking Tool Lets A VM Break Out And Attack Its Host

‘Cloudburst’ memory-corruption exploit released with Immunity’s new version of Canvas penetration testing software