CVE-2021-31400

An issue was discovered in tcp_pulloutofband() in tcp_in.c in HCC embedded InterNiche 4.0.1. The TCP out-of-band urgent-data processing function invokes a panic function if the pointer to the end of the out-of-band data points outside of the TCP segment's data. If the panic function hadn't a trap invocation removed, it will enter an infinite loop and therefore cause DoS (continuous loop or a device reset).

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/	Mitigation Third Party Advisory
https://www.kb.cert.org/vuls/id/608209	Third Party Advisory US Government Resource

Configurations

Configuration 1 (hide)

cpe:2.3:a:hcc-embedded:nichestack:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2021-08-19 11:15

Updated : 2024-02-28 18:28

NVD link : CVE-2021-31400

Mitre link : CVE-2021-31400

CVE.ORG link : CVE-2021-31400

JSON object : View

Products Affected

hcc-embedded

nichestack

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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