yasm v1.3.0 was discovered to contain a use after free via the function pp_getline at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.
Weakness
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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Yasm | Tortall | 1.3.0 (including) | 1.3.0 (including) |
| Yasm | Ubuntu | bionic | * |
| Yasm | Ubuntu | kinetic | * |
| Yasm | Ubuntu | lunar | * |
| Yasm | Ubuntu | mantic | * |
| Yasm | Ubuntu | trusty | * |
| Yasm | Ubuntu | xenial | * |