In PHP versions 8.1.x below 8.1.8, when fileinfo functions, such as finfo_buffer, due to incorrect patch applied to the third party code from libmagic, incorrect function may be used to free allocated memory, which may lead to heap corruption.
The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Php | Php | 8.1.0 (including) | 8.1.8 (excluding) |
| Php5 | Ubuntu | trusty | * |
| Php7.0 | Ubuntu | xenial | * |
| Php8.1 | Ubuntu | devel | * |
| Php8.1 | Ubuntu | jammy | * |
| Php8.1 | Ubuntu | kinetic | * |
| Php8.1 | Ubuntu | upstream | * |