In the CODESYS V2 web server prior to V1.1.9.22 crafted web server requests can trigger a parser error. Since the parser result is not checked under all conditions, a pointer dereference with an invalid address can occur. This leads to a denial of service situation.
The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Codesys | Codesys | * | 1.1.9.22 (excluding) |