CVE-2020-17470

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Third-Party Advisory sourceforge.net Third-Party Advisory cisa.gov Third-Party Advisory cert.org
Affected: n/a n/a
Published at:
Updated at:

References

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
http://fnet.sourceforge.net/manual/fnet_history.html third party advisory release notes

Frequently Asked Questions

What is the severity of CVE-2020-17470?
CVE-2020-17470 has been scored as a medium severity vulnerability.
How to fix CVE-2020-17470?
To fix CVE-2020-17470, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-17470 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-17470 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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