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CVE-2021-31401

Published: Aug 19, 2021

Modified: Aug 3, 2024

PUBLISHED

Description

An issue was discovered in tcp_rcv() in nptcp.c in HCC embedded InterNiche 4.0.1. The TCP header processing code doesn't sanitize the value of the IP total length field (header length + data length). With a crafted IP packet, an integer overflow occurs whenever the value of the IP data length is calculated by subtracting the length of the header from the total length of the IP packet.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://cert-portal.siemens.com/productcert/pdf/ssa-789208.pdf

x_refsource_CONFIRM

https://www.forescout.com/blog/new-critical-operational-technology-vulnerabilities-found-on-nichestack/

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third-party-advisory

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