The Snap7 Server version 1.4.1 can be crashed when the ItemCount field of the ReadVar or WriteVar functions of the S7 protocol implementation in Snap7 are provided with unexpected input, thus resulting in denial of service attack.
                
            References
                    | Link | Resource | 
|---|---|
| https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/ | Third Party Advisory | 
| https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/ | Third Party Advisory | 
Configurations
                    History
                    21 Nov 2024, 03:04
| Type | Values Removed | Values Added | 
|---|---|---|
| References | () https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/ - Third Party Advisory | 
Information
                Published : 2017-11-17 21:29
Updated : 2025-04-20 01:37
NVD link : CVE-2017-1000230
Mitre link : CVE-2017-1000230
CVE.ORG link : CVE-2017-1000230
JSON object : View
Products Affected
                snap7_project
- snap7_server
 
CWE
                
                    
                        
                        CWE-20
                        
            Improper Input Validation
