WebKit in Apple Safari before 5.0.1 on Mac OS X 10.5 through 10.6 and Windows, and before 4.1.1 on Mac OS X 10.4; and webkitgtk before 1.2.6; does not properly handle just-in-time (JIT) compiled JavaScript stubs, which allows remote attackers to execute arbitrary code or cause a denial of service (application crash) via a crafted HTML document, related to a "reentrancy issue."
| Software | From | Fixed in |
|---|---|---|
| apple / safari | - | 4.1.x |
| apple / safari | - | 5.0.x |
| apple / safari | 4.0 | 4.0.x |
| apple / safari | 4.0.0b | 4.0.0b.x |
| apple / safari | 4.0.1 | 4.0.1.x |
| apple / safari | 4.0.2 | 4.0.2.x |
| apple / safari | 4.0.3 | 4.0.3.x |
| apple / safari | 4.0.4 | 4.0.4.x |
| apple / safari | 4.0.5 | 4.0.5.x |
| apple / webkit | - | - |