CVE-2017-1000230
UnknownEPSS 1.03%
Last modified
CVE-2017-1000230 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.03% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Snap7 Project | Snap7 Server | 1.4.1 |
References
- https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/Third Party Advisory
- https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-1000230?
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.
How severe is CVE-2017-1000230?
Severity scoring for CVE-2017-1000230 is pending analysis. The EPSS model estimates a 1.03% probability of exploitation in the next 30 days.
How do I fix CVE-2017-1000230?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-1000230?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST