CVE-2017-1000230

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory sourceforge.net
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sourceforge.net/p/snap7/discussion/bugfix/thread/2d2d085c/ third party advisory

Frequently Asked Questions

What is the severity of CVE-2017-1000230?
CVE-2017-1000230 has been scored as a high severity vulnerability.
How to fix CVE-2017-1000230?
To fix CVE-2017-1000230, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-1000230 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2017-1000230 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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