uBlock Origin before 1.36.2 and nMatrix before 4.4.9 support an arbitrary depth of parameter nesting for strict blocking, which allows crafted web sites to cause a denial of service (unbounded recursion that can trigger memory consumption and a loss of all blocking functionality).
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 |
|---|---|---|---|
| Nmatrix | Sciruby | * | 4.4.9 (excluding) |
| Ublock_origin | Ublockorigin | * | 1.36.2 (excluding) |
| Umatrix | Umatrix_project | * | 1.4.2 (excluding) |
| Ublock-origin | Ubuntu | bionic | * |
| Ublock-origin | Ubuntu | hirsute | * |
| Ublock-origin | Ubuntu | impish | * |
| Ublock-origin | Ubuntu | kinetic | * |
| Ublock-origin | Ubuntu | lunar | * |
| Ublock-origin | Ubuntu | mantic | * |
| Ublock-origin | Ubuntu | trusty | * |
| Ublock-origin | Ubuntu | xenial | * |
| Umatrix | Ubuntu | hirsute | * |
| Umatrix | Ubuntu | impish | * |
| Umatrix | Ubuntu | kinetic | * |
| Umatrix | Ubuntu | lunar | * |
| Umatrix | Ubuntu | trusty | * |
| Umatrix | Ubuntu | xenial | * |