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So what happened here? There's an in-the-wild exploit that's bypassing sandboxing - so there must be at least two bugs, or the sandbox isn't tight enough (which, for Chrome, would surprise the hell out of me).

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"The second vulnerability was in Microsoft Windows. It is a local privilege escalation in the Windows win32k.sys kernel driver that can be used as a security sandbox escape."

https://security.googleblog.com/2019/03/disclosing-vulnerabi...

I used to work on Chrome. There have been periodic sandbox escapes, and chained exploits that escape to userland are routinely performed at pwn2own. This is just notable because there is a live exploit in the wild.

There there any public information about what the live exploit does?

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