Mozilla Firefox before 33.0 does not properly initialize memory for GIF images, which allows remote attackers to obtain sensitive information from process memory via a crafted web page that triggers a sequence of rendering operations for truncated GIF data within a CANVAS element.
| Software | From | Fixed in |
|---|---|---|
| mozilla / firefox | - | 32.0.x |
| mozilla / firefox | 31.0 | 31.0.x |
| mozilla / firefox | 30.0 | 30.0.x |
| mozilla / firefox | 31.1.0 | 31.1.0.x |