CVE Vulnerability

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://www.kb.cert.org/vuls/id/608209 Third Party Advisory US Government Resource
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
Configurations

Configuration 1

cpe:2.3:a:hcc-embedded:nichestack_tcp/ip:4.0.1:*:*:*:*:*:*:*
Information

Published : 2021-08-18 07:15

Updated : 2021-08-26 06:23

NVD link : CVE-2020-25927

Mitre link : CVE-2020-25927

Products Affected
No products.
CWE
CWE-125

Out-of-bounds Read