Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | 4.1 |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.16639457
- https://security.netapp.com/advisory/ntap-20230929-0001/
- https://www.debian.org/security/2023/dsa-5480
- https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html
- https://lore.kernel.org/netdev/33dc43f587ec1388ba456b4915c75f02a8aae226.16639457
- https://security.netapp.com/advisory/ntap-20230929-0001/
- https://www.debian.org/security/2023/dsa-5480
FAQ
What is CVE-2022-4269?
CVE-2022-4269 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 use...
How severe is CVE-2022-4269?
CVE-2022-4269 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-4269?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.