Vulnerability Description
A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Layer 2 Tunneling Protocol | < 6.0 |
| Fedoraproject | Fedora | 35 |
Related Weaknesses (CWE)
References
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lore.kernel.org/all/20221114191619.124659-1-jakub%40cloudflare.com/t
- https://lore.kernel.org/netdev/20221121085426.21315-1-jakub%40cloudflare.com/t
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lore.kernel.org/all/20221114191619.124659-1-jakub%40cloudflare.com/t
- https://lore.kernel.org/netdev/20221121085426.21315-1-jakub%40cloudflare.com/t
FAQ
What is CVE-2022-4129?
CVE-2022-4129 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A flaw was found in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use th...
How severe is CVE-2022-4129?
CVE-2022-4129 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-2022-4129?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Layer 2 Tunneling Protocol, Fedoraproject Fedora.