Mozilla Firefox before 3.6.7 and Thunderbird before 3.1.1 do not properly implement read restrictions for CANVAS elements, which allows remote attackers to obtain sensitive cross-origin information via vectors involving reference retention and node deletion.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | * | 3.6.6 (including) |
| Firefox | Mozilla | 3.6 (including) | 3.6 (including) |
| Firefox | Mozilla | 3.6.2 (including) | 3.6.2 (including) |
| Firefox | Mozilla | 3.6.3 (including) | 3.6.3 (including) |
| Firefox | Mozilla | 3.6.4 (including) | 3.6.4 (including) |
| Thunderbird | Mozilla | * | 3.1 (including) |