Submission + - Researcher claims to have Chrome 0day, Google says 'prove it' (securityledger.com)
However, more than a few questions hang over Gobejishvili’s talk. The researcher said he discovered the hole in July, but hasn't bothered to contact Google. He will demonstrate the exploit at MalCon, and have a “general discussion” about it, but won’t release source code for it. “I know this is a very dangerous issuethat’s why I am not publishing more details about this vulnerability,” he wrote. Google said that, with no information on the hole, it can only wait to hear the researcher's Malcon presentation before it can assess the threat to Chrome users."