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CVE-2020-25767

Published: Aug 18, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-125
7.5HIGH
NVD MITRE
EPSS Score
1.5%
Top 28.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-125

Affected Products

HCC Embedded
commercialaka interniche, nichelite
NicheLiteEmbedded
ICS / OT / IoT / medical-device
InterNicheEmbedded
ICS / OT / IoT / medical-device
hcc-embedded
commercialaka nichestack, interniche, nichestack tcp/ip
nichestack ipv4Embedded
Operating Systems / rtos-embedded-os
and 1 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
forescout.com
https://www.kb.cert.org/vuls/id/608209
kb.cert.org
https://www.cybersecurity-help.cz/vdb/SB2021080607
cybersecurity-help.cz
and 28 more references View all →

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