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).
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
| Link | Tags |
|---|---|
| https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/ | third party advisory mitigation |
| https://www.kb.cert.org/vuls/id/608209 | third party advisory us government resource |