Vulnerability Monitor

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CVE-2020-25927

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.

Published

2021-08-18T19:15:07.247

Last Modified

2024-11-21T05:19:00.313

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-125

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	hcc-embedded	nichestack_tcp\/ip	4.0.1	Yes

References

http://www.iniche.com/source-code/networking-stack/nichestack.php Broken Link ([email protected])
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ Mitigation, Third Party Advisory ([email protected])
https://www.kb.cert.org/vuls/id/608209 Third Party Advisory, US Government Resource ([email protected])
http://www.iniche.com/source-code/networking-stack/nichestack.php Broken Link (af854a3a-2127-422b-91ae-364da2661108)
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/608209 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)