high7.5
CVE-2021-31400
An issue was discovered in tcp_pulloutofband() in tcp_in.c in HCC embedded InterNiche 4.0.1.
Impact
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).
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Hcc-Embedded | Nichestack | before 4.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
- https://www.kb.cert.org/vuls/id/608209
- https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/
- https://www.kb.cert.org/vuls/id/608209