Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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 |
|---|---|---|---|
| Firefox | Mozilla | * | 17.0 (excluding) |
| Seamonkey | Mozilla | * | 2.14 (excluding) |
| Thunderbird | Mozilla | * | 17.0 (excluding) |
| Firefox | Ubuntu | hardy | * |
| Firefox | Ubuntu | lucid | * |
| Firefox | Ubuntu | oneiric | * |
| Firefox | Ubuntu | precise | * |
| Firefox | Ubuntu | quantal | * |
| Seamonkey | Ubuntu | hardy | * |
| Seamonkey | Ubuntu | lucid | * |
| Seamonkey | Ubuntu | oneiric | * |
| Thunderbird | Ubuntu | hardy | * |
| Thunderbird | Ubuntu | lucid | * |
| Thunderbird | Ubuntu | oneiric | * |
| Thunderbird | Ubuntu | precise | * |
| Thunderbird | Ubuntu | quantal | * |
| Xulrunner-1.9.2 | Ubuntu | hardy | * |
| Xulrunner-1.9.2 | Ubuntu | lucid | * |