CVE-2020-25927

Description

The DNS feature in InterNiche NicheStack TCP/IP 4.0.1 is affected by: Out-of-bounds Read. The impact is: a denial of service (remote). The component is: DNS response processing in function: dns_upcall(). The attack vector is: a specific DNS response packet. The code does not check whether the number of queries/responses specified in the DNS packet header corresponds to the query/response data available in the DNS packet.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.49%
Third-Party Advisory cert.org Third-Party Advisory forescout.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.iniche.com/source-code/networking-stack/nichestack.php broken link
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ mitigation third party advisory
https://www.kb.cert.org/vuls/id/608209 third party advisory us government resource

Frequently Asked Questions

What is the severity of CVE-2020-25927?
CVE-2020-25927 has been scored as a high severity vulnerability.
How to fix CVE-2020-25927?
To fix CVE-2020-25927, 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-2020-25927 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-25927 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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