An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the pymatgen PyPI package, when an attacker is able to supply arbitrary input to the GaussianInput.from_string method
The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pymatgen | Pymatgen | - (including) | - (including) |
| Pymatgen | Ubuntu | esm-apps/jammy | * |
| Pymatgen | Ubuntu | jammy | * |
| Pymatgen | Ubuntu | kinetic | * |
| Pymatgen | Ubuntu | lunar | * |
| Pymatgen | Ubuntu | mantic | * |
| Pymatgen | Ubuntu | trusty | * |
| Pymatgen | Ubuntu | upstream | * |
| Pymatgen | Ubuntu | xenial | * |
Attackers can create crafted inputs that
intentionally cause the regular expression to use
excessive backtracking in a way that causes the CPU
consumption to spike.