WebKit in Apple Safari before 5.0.3 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.3 on Mac OS X 10.4, does not properly handle the :first-letter pseudo-element in a Cascading Style Sheets (CSS) token sequence, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.
| Software | From | Fixed in |
|---|---|---|
| apple / safari | - | 4.1.2.x |
| apple / safari | - | 5.0.2.x |
| apple / safari | 1.0 | 1.0.x |
| apple / safari | 1.0-beta | 1.0-beta.x |
| apple / safari | 1.0-beta2 | 1.0-beta2.x |
| apple / safari | 1.0.0 | 1.0.0.x |
| apple / safari | 1.0.0b1 | 1.0.0b1.x |
| apple / safari | 1.0.0b2 | 1.0.0b2.x |
| apple / safari | 1.0.1 | 1.0.1.x |
| apple / safari | 1.0.2 | 1.0.2.x |
| apple / safari | 1.0.3 | 1.0.3.x |
| apple / safari | 1.0.3-85.8 | 1.0.3-85.8.x |
| apple / safari | 1.0.3-85.8.1 | 1.0.3-85.8.1.x |
| apple / safari | 1.1 | 1.1.x |
| apple / safari | 1.1.0 | 1.1.0.x |
| apple / safari | 1.1.1 | 1.1.1.x |
| apple / safari | 1.2 | 1.2.x |
| apple / safari | 1.2.0 | 1.2.0.x |
| apple / safari | 1.2.1 | 1.2.1.x |
| apple / safari | 1.2.2 | 1.2.2.x |
| apple / safari | 1.2.3 | 1.2.3.x |
| apple / safari | 1.2.4 | 1.2.4.x |
| apple / safari | 1.2.5 | 1.2.5.x |
| apple / safari | 1.3 | 1.3.x |
| apple / safari | 1.3.0 | 1.3.0.x |
| apple / safari | 1.3.1 | 1.3.1.x |
| apple / safari | 1.3.2 | 1.3.2.x |
| apple / safari | 1.3.2-312.5 | 1.3.2-312.5.x |
| apple / safari | 1.3.2-312.6 | 1.3.2-312.6.x |
| apple / safari | 2 | 2.x |
| apple / safari | 2.0 | 2.0.x |
| apple / safari | 2.0.0 | 2.0.0.x |
| apple / safari | 2.0.1 | 2.0.1.x |
| apple / safari | 2.0.2 | 2.0.2.x |
| apple / safari | 2.0.3 | 2.0.3.x |
| apple / safari | 2.0.3-417.8 | 2.0.3-417.8.x |
| apple / safari | 2.0.3-417.9 | 2.0.3-417.9.x |
| apple / safari | 2.0.3-417.9.2 | 2.0.3-417.9.2.x |
| apple / safari | 2.0.3-417.9.3 | 2.0.3-417.9.3.x |
| apple / safari | 2.0.4 | 2.0.4.x |
| apple / safari | 3 | 3.x |
| apple / safari | 3.0 | 3.0.x |
| apple / safari | 3.0.0 | 3.0.0.x |
| apple / safari | 3.0.0b | 3.0.0b.x |
| apple / safari | 3.0.1 | 3.0.1.x |
| apple / safari | 3.0.1b | 3.0.1b.x |
| apple / safari | 3.0.2 | 3.0.2.x |
| apple / safari | 3.0.2b | 3.0.2b.x |
| apple / safari | 3.0.3 | 3.0.3.x |
| apple / safari | 3.0.3b | 3.0.3b.x |
| apple / safari | 3.0.4 | 3.0.4.x |
| apple / safari | 3.0.4b | 3.0.4b.x |
| apple / safari | 3.1.0 | 3.1.0.x |
| apple / safari | 3.1.0b | 3.1.0b.x |
| apple / safari | 3.1.1 | 3.1.1.x |
| apple / safari | 3.1.2 | 3.1.2.x |
| apple / safari | 3.2.0 | 3.2.0.x |
| apple / safari | 3.2.1 | 3.2.1.x |
| apple / safari | 3.2.2 | 3.2.2.x |
| apple / safari | 4.1 | 4.1.x |
| apple / safari | 4.1.1 | 4.1.1.x |
| apple / safari | 5.0 | 5.0.x |
| apple / safari | 5.0.1 | 5.0.1.x |
| apple / webkit | - | - |