CVE-2020-17468

Description

An issue was discovered in FNET through 4.6.4. The code for processing the hop-by-hop header (in the IPv6 extension headers) doesn't check for a valid length of an extension header, and therefore an out-of-bounds read can occur in _fnet_ip6_ext_header_handler_options in fnet_ip6.c, leading to Denial-of-Service.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.51%
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-2020-17468?
CVE-2020-17468 has been scored as a high severity vulnerability.
How to fix CVE-2020-17468?
To fix CVE-2020-17468, 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-2020-17468 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-17468 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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