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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.

POC

Reference

- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/

- https://www.kb.cert.org/vuls/id/608209

Github

No PoCs found on GitHub currently.