CVE-2023-1206

Description

A hash collision flaw was found in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when a user makes a new kind of SYN flood attack. A user located in the local network or with a high bandwidth connection can increase the CPU usage of the server that accepts IPV6 connections up to 95%.

Category

5.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Vendor Advisory debian.org Vendor Advisory debian.org
Affected: n/a Kernel
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=2175903 third party advisory issue tracking
https://www.debian.org/security/2023/dsa-5480 vendor advisory
https://www.debian.org/security/2023/dsa-5492 vendor advisory
https://security.netapp.com/advisory/ntap-20230929-0006/
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html mailing list
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html mailing list

Frequently Asked Questions

What is the severity of CVE-2023-1206?
CVE-2023-1206 has been scored as a medium severity vulnerability.
How to fix CVE-2023-1206?
To fix CVE-2023-1206, 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-2023-1206 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-1206 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.
What software or system is affected by CVE-2023-1206?
CVE-2023-1206 affects n/a Kernel.
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