Vulnerability Instance

Security researcher Abhishek Arya (Inferno) of the Google
Chrome Security Team discovered a number of use-after-free and out of bounds read 
issues using the Address Sanitizer tool. These issues are potentially exploitable, 
allowing for remote code execution. 
In general this flaw cannot be exploited through email in the
Thunderbird and Seamonky products because scripting is disabled, but is 
potentially a risk in browser or browser-like contexts.