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7.5
CVSSv3

CVE-2020-25927

Published: 18/08/2021 Updated: 26/08/2021
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Subscribe to Nichestack Tcp\/ip

Vulnerability Summary

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.

Vulnerability Trend

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hcc-embedded nichestack tcp\\/ip 4.0.1

ICS Advisories

HCC Embedded InterNiche TCP/IP stack, NicheLite (Update B)

References

CWE-125https://www.kb.cert.org/vuls/id/608209http://www.iniche.com/source-code/networking-stack/nichestack.phphttps://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/https://nvd.nist.govhttps://www.cisa.gov/uscert/ics/advisories/icsa-21-217-01
CVSSv3
CVSSv2
CVSSv3
VMScore
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