7.5 - CVE-2020-25927

Executive Summary

Informations
Name	CVE-2020-25927	First vendor Publication	2021-08-18
Vendor	Cve	Last vendor Modification	2021-08-26

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score	7.5
Base Score	7.5	Environmental Score	7.5
impact SubScore	3.6	Temporal Score	7.5
Exploitabality Sub Score	3.9

Attack Vector	Network	Attack Complexity	Low
Privileges Required	None	User Interaction	None
Scope	Unchanged	Confidentiality Impact	None
Integrity Impact	None	Availability Impact	High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score	5	Attack Range	Network
Cvss Impact Score	2.9	Attack Complexity	Low
Cvss Expoit Score	10	Authentication	None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25927

CWE : Common Weakness Enumeration

%	Id	Name
100 %	CWE-125	Out-of-bounds Read

CPE : Common Platform Enumeration

Type	Description	Count
Application	Hcc-Embedded Nichestack Tcp/Ip cpe:2.3:a:hcc-embedded:nichestack_tcp/ip:4.0.1:::::::*	1

Sources (Detail)

Source	Url
CERT-VN	https://www.kb.cert.org/vuls/id/608209
MISC	http://www.iniche.com/source-code/networking-stack/nichestack.php https://www.forescout.com/blog/new-critical-operational-technology-vulnerabil...