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CVE-2020-17470
Published: Dec 11, 2020
Modified: Aug 4, 2024
PUBLISHED
Description
An issue was discovered in FNET through 4.6.4. The code that initializes the DNS client interface structure does not set sufficiently random transaction IDs (they are always set to 1 in _fnet_dns_poll in fnet_dns.c). This significantly simplifies DNS cache poisoning attacks.
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
References
https://www.kb.cert.org/vuls/id/815128
x_refsource_MISC
https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
x_refsource_MISC
http://fnet.sourceforge.net/manual/fnet_history.html
x_refsource_CONFIRM
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