CVE-2023-38406

Description

bgpd/bgp_flowspec.c in FRRouting (FRR) before 8.4.3 mishandles an nlri length of zero, aka a "flowspec overflow."

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.12%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/FRRouting/frr/pull/12884 patch issue tracking
https://github.com/FRRouting/frr/compare/frr-8.4.2...frr-8.4.3 patch
https://lists.debian.org/debian-lts-announce/2024/04/msg00019.html mailing list

Frequently Asked Questions

What is the severity of CVE-2023-38406?
CVE-2023-38406 has been scored as a critical severity vulnerability.
How to fix CVE-2023-38406?
To fix CVE-2023-38406, 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-2023-38406 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-38406 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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