CVE-2020-25767

EUVD-2020-18418
An issue was discovered in HCC Embedded NicheStack IPv4 4.1. The dnc_copy_in routine for parsing DNS domain names does not check whether a domain name compression pointer is pointing within the bounds of the packet (e.g., forward compression pointer jumps are allowed), which leads to an Out-of-bounds Read, and a Denial-of-Service as a consequence.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
Affected Products (NVD)
VendorProductVersion
hcc-embeddednichestack_ipv4
4.1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
https://www.kb.cert.org/vuls/id/608209
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
https://www.kb.cert.org/vuls/id/608209