Description
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).
References (2)
Core 2
Core References
Mitigation, Third Party Advisory x_refsource_misc
https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
Third Party Advisory, US Government Resource third-party-advisory
x_refsource_cert-vn
https://www.kb.cert.org/vuls/id/608209
Scores
CVSS v3
7.5
EPSS
0.0041
EPSS Percentile
61.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-835
Status
published
Products (1)
hcc-embedded/nichestack
< 4.3
Published
Aug 19, 2021
Tracked Since
Feb 18, 2026