Vulnerability Details 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).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 60.4%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.0
References
Products affected by CVE-2021-31400
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cpe:2.3:a:hcc-embedded:nichestack:3.0