CVE-2022-4269

Description

A flaw was found in the Linux kernel Traffic Control (TC) subsystem. Using a specific networking configuration (redirecting egress packets to ingress using TC action "mirred") a local unprivileged user could trigger a CPU soft lockup (ABBA deadlock) when the transport protocol in use (TCP or SCTP) does a retransmission, resulting in a denial of service condition.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Affected: n/a Linux kernel (TC subsystem)
Published at:
Updated at:

References

Link Tags
https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.1663945716.git.dcaratti%40redhat.com/
https://www.debian.org/security/2023/dsa-5480
https://security.netapp.com/advisory/ntap-20230929-0001/
https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html

Frequently Asked Questions

What is the severity of CVE-2022-4269?
CVE-2022-4269 has been scored as a medium severity vulnerability.
How to fix CVE-2022-4269?
To fix CVE-2022-4269, 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-2022-4269 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-4269 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-2022-4269?
CVE-2022-4269 affects n/a Linux kernel (TC subsystem).
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