The Snap7 server component in version 1.4.1, when an attacker sends a crafted packet with COTP protocol the last-data-unit flag set to No and S7 writes a var function, the Snap7 server will be crashed.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Snap7 | Snap7_project | 1.4.1 (including) | 1.4.1 (including) |