There is a stack consumption issue in LibSass 3.4.5 that is triggered in the function Sass::Eval::operator() in eval.cpp. It will lead to a remote denial of service attack.
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libsass | Libsass | 3.4.5 (including) | 3.4.5 (including) |
| Libsass | Ubuntu | artful | * |
| Libsass | Ubuntu | bionic | * |
| Libsass | Ubuntu | cosmic | * |
| Libsass | Ubuntu | devel | * |
| Libsass | Ubuntu | disco | * |
| Libsass | Ubuntu | eoan | * |
| Libsass | Ubuntu | esm-apps/bionic | * |
| Libsass | Ubuntu | esm-apps/focal | * |
| Libsass | Ubuntu | esm-apps/jammy | * |
| Libsass | Ubuntu | esm-apps/noble | * |
| Libsass | Ubuntu | esm-apps/xenial | * |
| Libsass | Ubuntu | focal | * |
| Libsass | Ubuntu | groovy | * |
| Libsass | Ubuntu | hirsute | * |
| Libsass | Ubuntu | impish | * |
| Libsass | Ubuntu | jammy | * |
| Libsass | Ubuntu | kinetic | * |
| Libsass | Ubuntu | lunar | * |
| Libsass | Ubuntu | mantic | * |
| Libsass | Ubuntu | noble | * |
| Libsass | Ubuntu | upstream | * |
| Libsass | Ubuntu | xenial | * |
| Libsass | Ubuntu | zesty | * |