Use-after-free vulnerability in WebKit before r65958, as used in Google Chrome before 6.0.472.59, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger use of document APIs such as document.close during parsing, as demonstrated by a Cascading Style Sheets (CSS) file referencing an invalid SVG font, aka rdar problem 8442098.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Chrome | * | 6.0.472.59 (excluding) | |
| Chromium-browser | Ubuntu | lucid | * |
| Qt4-x11 | Ubuntu | jaunty | * |
| Qt4-x11 | Ubuntu | karmic | * |
| Qt4-x11 | Ubuntu | lucid | * |
| Webkit | Ubuntu | hardy | * |
| Webkit | Ubuntu | jaunty | * |
| Webkit | Ubuntu | karmic | * |
| Webkit | Ubuntu | lucid | * |
| Webkit | Ubuntu | maverick | * |
| Webkit | Ubuntu | upstream | * |