CVE-2022-3586
MEDIUMLinux Kernel 2.6.39-5.19 - Use-After-Free in sch_sfb Enqueue Function
Title source: llmDescription
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.
References (3)
Core 3
Core References
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/9efd23297cca
Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/upcoming/
Scores
CVSS v3
5.5
EPSS
0.0007
EPSS Percentile
22.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-416
Status
published
Products (3)
debian/debian_linux
10.0
linux/linux_kernel
6.0 rc1 (4 CPE variants)
linux/linux_kernel
2.6.39 - 5.19
Published
Oct 19, 2022
Tracked Since
Feb 18, 2026