Buffer overflow in WebGL after out of memory allocation
- January 26, 2016
- Aki Helin
- Firefox, Firefox ESR, Thunderbird
- Fixed in
- Firefox 44
- Firefox ESR 38.6
- Thunderbird 38.6
Security researcher Aki Helin used the Address Sanitizer tool to find a buffer overflow write when rendering some WebGL content. This leads to a potentially exploitable crash.
In general this flaw cannot be exploited through email in the Thunderbird product, but is potentially a risk in browser or browser-like contexts.