Use-after-free in Web Audio due to incorrect control message ordering
- July 22, 2014
- Atte Kettunen
- Firefox, Thunderbird
- Fixed in
- Firefox 31
- Thunderbird 31
Using the Address Sanitizer tool, security researcher Atte Kettunen from OUSPG discovered a use-after-free in Web Audio due to an issue with how control messages for Web Audio are ordered and processed. This leads to a potentially exploitable crash.
In general this flaw cannot be exploited through email in the Thunderbird product because scripting is disabled, but is potentially a risk in browser or browser-like contexts.