Mozilla Firefox before 3.0.15 and 3.5.x before 3.5.4, and SeaMonkey before 2.0, does not properly handle a right-to-left override (aka RLO or U+202E) Unicode character in a download filename, which allows remote attackers to spoof file extensions via a crafted filename, as demonstrated by displaying a non-executable extension for an executable file.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Firefox | Mozilla | 3.0-beta5 (including) | 3.0-beta5 (including) |
| Firefox | Mozilla | 3.0.1 (including) | 3.0.1 (including) |
| Firefox | Mozilla | 3.0.2 (including) | 3.0.2 (including) |
| Firefox | Mozilla | 3.0.3 (including) | 3.0.3 (including) |
| Firefox | Mozilla | 3.0.4 (including) | 3.0.4 (including) |
| Firefox | Mozilla | 3.0.5 (including) | 3.0.5 (including) |
| Firefox | Mozilla | 3.0.6 (including) | 3.0.6 (including) |
| Firefox | Mozilla | 3.0.7 (including) | 3.0.7 (including) |
| Firefox | Mozilla | 3.0.8 (including) | 3.0.8 (including) |
| Firefox | Mozilla | 3.0.9 (including) | 3.0.9 (including) |
| Firefox | Mozilla | 3.0.10 (including) | 3.0.10 (including) |
| Firefox | Mozilla | 3.0.11 (including) | 3.0.11 (including) |
| Firefox | Mozilla | 3.0.12 (including) | 3.0.12 (including) |
| Firefox | Mozilla | 3.0.13 (including) | 3.0.13 (including) |
| Firefox | Mozilla | 3.5.1 (including) | 3.5.1 (including) |
| Firefox | Mozilla | 3.5.2 (including) | 3.5.2 (including) |
| Firefox | Mozilla | 3.5.3 (including) | 3.5.3 (including) |
| Seamonkey | Mozilla | * | 1.5.0.10 (including) |
| Seamonkey | Mozilla | 1.0 (including) | 1.0 (including) |
| Seamonkey | Mozilla | 1.0-alpha (including) | 1.0-alpha (including) |
| Seamonkey | Mozilla | 1.0-beta (including) | 1.0-beta (including) |
| Seamonkey | Mozilla | 1.0.1 (including) | 1.0.1 (including) |
| Seamonkey | Mozilla | 1.0.2 (including) | 1.0.2 (including) |
| Seamonkey | Mozilla | 1.0.3 (including) | 1.0.3 (including) |
| Seamonkey | Mozilla | 1.0.4 (including) | 1.0.4 (including) |
| Seamonkey | Mozilla | 1.0.5 (including) | 1.0.5 (including) |
| Seamonkey | Mozilla | 1.0.6 (including) | 1.0.6 (including) |
| Seamonkey | Mozilla | 1.0.7 (including) | 1.0.7 (including) |
| Seamonkey | Mozilla | 1.0.8 (including) | 1.0.8 (including) |
| Seamonkey | Mozilla | 1.0.9 (including) | 1.0.9 (including) |
| Seamonkey | Mozilla | 1.1 (including) | 1.1 (including) |
| Seamonkey | Mozilla | 1.1-alpha (including) | 1.1-alpha (including) |
| Seamonkey | Mozilla | 1.1-beta (including) | 1.1-beta (including) |
| Seamonkey | Mozilla | 1.1.1 (including) | 1.1.1 (including) |
| Seamonkey | Mozilla | 1.1.2 (including) | 1.1.2 (including) |
| Seamonkey | Mozilla | 1.1.3 (including) | 1.1.3 (including) |
| Seamonkey | Mozilla | 1.1.4 (including) | 1.1.4 (including) |
| Seamonkey | Mozilla | 1.1.5 (including) | 1.1.5 (including) |
| Seamonkey | Mozilla | 1.1.6 (including) | 1.1.6 (including) |
| Seamonkey | Mozilla | 1.1.7 (including) | 1.1.7 (including) |
| Seamonkey | Mozilla | 1.1.8 (including) | 1.1.8 (including) |
| Seamonkey | Mozilla | 1.1.9 (including) | 1.1.9 (including) |
| Seamonkey | Mozilla | 1.1.10 (including) | 1.1.10 (including) |
| Seamonkey | Mozilla | 1.1.11 (including) | 1.1.11 (including) |
| Seamonkey | Mozilla | 1.1.12 (including) | 1.1.12 (including) |
| Seamonkey | Mozilla | 1.1.13 (including) | 1.1.13 (including) |
| Seamonkey | Mozilla | 1.1.14 (including) | 1.1.14 (including) |
| Seamonkey | Mozilla | 1.1.15 (including) | 1.1.15 (including) |
| Seamonkey | Mozilla | 1.1.16 (including) | 1.1.16 (including) |
| Seamonkey | Mozilla | 1.1.17 (including) | 1.1.17 (including) |
| Seamonkey | Mozilla | 1.5.0.8 (including) | 1.5.0.8 (including) |
| Seamonkey | Mozilla | 1.5.0.9 (including) | 1.5.0.9 (including) |
| Red Hat Enterprise Linux 3 | RedHat | seamonkey-0:1.0.9-0.47.el3 | * |
| Red Hat Enterprise Linux 4 | RedHat | firefox-0:3.0.15-3.el4 | * |
| Red Hat Enterprise Linux 4 | RedHat | nspr-0:4.7.6-1.el4_8 | * |
| Red Hat Enterprise Linux 4 | RedHat | seamonkey-0:1.0.9-50.el4_8 | * |
| Red Hat Enterprise Linux 4 | RedHat | thunderbird-0:1.5.0.12-25.el4 | * |
| Red Hat Enterprise Linux 5 | RedHat | firefox-0:3.0.15-3.el5_4 | * |
| Red Hat Enterprise Linux 5 | RedHat | nspr-0:4.7.6-1.el5_4 | * |
| Red Hat Enterprise Linux 5 | RedHat | xulrunner-0:1.9.0.15-3.el5_4 | * |
| Red Hat Enterprise Linux 5 | RedHat | thunderbird-0:2.0.0.24-2.el5_4 | * |
| Firefox-3.0 | Ubuntu | hardy | * |
| Firefox-3.0 | Ubuntu | intrepid | * |
| Firefox-3.0 | Ubuntu | jaunty | * |
| Firefox-3.0 | Ubuntu | upstream | * |
| Firefox-3.5 | Ubuntu | jaunty | * |
| Firefox-3.5 | Ubuntu | karmic | * |
| Firefox-3.5 | Ubuntu | upstream | * |
| Thunderbird | Ubuntu | hardy | * |
| Thunderbird | Ubuntu | intrepid | * |
| Thunderbird | Ubuntu | jaunty | * |
| Thunderbird | Ubuntu | karmic | * |
| Thunderbird | Ubuntu | upstream | * |
| Xulrunner-1.9 | Ubuntu | hardy | * |
| Xulrunner-1.9 | Ubuntu | intrepid | * |
| Xulrunner-1.9 | Ubuntu | jaunty | * |
| Xulrunner-1.9 | Ubuntu | upstream | * |
| Xulrunner-1.9.1 | Ubuntu | jaunty | * |
| Xulrunner-1.9.1 | Ubuntu | karmic | * |
| Xulrunner-1.9.1 | Ubuntu | upstream | * |