Vulnerability Description
A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.39, <= 5.19 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://github.com/torvalds/linux/commit/9efd23297ccaPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
- https://www.zerodayinitiative.com/advisories/upcoming/Third Party AdvisoryVDB Entry
- https://github.com/torvalds/linux/commit/9efd23297ccaPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/11/msg00001.htmlMailing ListThird Party Advisory
- https://www.zerodayinitiative.com/advisories/upcoming/Third Party AdvisoryVDB Entry
FAQ
What is CVE-2022-3586?
CVE-2022-3586 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (a...
How severe is CVE-2022-3586?
CVE-2022-3586 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-2022-3586?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Debian Debian Linux.