JasPer 2.0.14 allows denial of service via a reachable assertion in the function jpc_abstorelstepsize in libjasper/jpc/jpc_enc.c.
The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Jasper | Jasper_project | 2.0.14 (including) | 2.0.14 (including) |
| Jasper | Ubuntu | esm-infra/xenial | * |
| Jasper | Ubuntu | trusty | * |
| Jasper | Ubuntu | xenial | * |
While assertion is good for catching logic errors and reducing the chances of reaching more serious vulnerability conditions, it can still lead to a denial of service. For example, if a server handles multiple simultaneous connections, and an assert() occurs in one single connection that causes all other connections to be dropped, this is a reachable assertion that leads to a denial of service.