An issue was discovered in the DNS implementation in Ethernut in Nut/OS 5.1. The DNS response data length is not checked (it can be set to an arbitrary value from a packet). This may lead to successful Denial-of-Service, and possibly Remote Code Execution.
The product writes data past the end, or before the beginning, of the intended buffer.
Link | Tags |
---|---|
https://www.kb.cert.org/vuls/id/815128 | third party advisory us government resource |
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01 | third party advisory us government resource |