Vulnerability Details : 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.
Vulnerability category: Denial of service
Products affected by CVE-2020-25927
- cpe:2.3:a:hcc-embedded:nichestack_tcp\/ip:4.0.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-25927
0.16%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25927
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-25927
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-25927
-
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
New Critical Operational Technology Vulnerabilities Found on NicheStack – Mitigation Advised - ForescoutMitigation;Third Party Advisory
-
https://www.kb.cert.org/vuls/id/608209
VU#608209 - NicheStack embedded TCP/IP has vulnerabilitiesThird Party Advisory;US Government Resource
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http://www.iniche.com/source-code/networking-stack/nichestack.php
Broken Link
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