CVE-2022-47929
Linux Kernel Traffic Control Subsystem NULL Pointer Dereference Denial of Service
Description
In the Linux kernel before 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c.
INFO
Published Date :
Jan. 17, 2023, 9:15 p.m.
Last Modified :
April 4, 2025, 6:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2022-47929 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-47929.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Makefile Dockerfile Shell C
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-47929 vulnerability anywhere in the article.
-
The Cloudflare Blog
Cloudflare’s commitment to CISA Secure-By-Design pledge: delivering new kernels, faster
2025-04-045 min readAs cyber threats continue to exploit systemic vulnerabilities in widely used technologies, the United States Cybersecurity and Infrastructure Agency (CISA) produced best practices ... Read more
The following table lists the changes that have been made to the
CVE-2022-47929 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 04, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 Added Reference https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html Added Reference https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html Added Reference https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html Added Reference https://www.debian.org/security/2023/dsa-5324 Added Reference https://www.spinics.net/lists/netdev/msg555705.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
May. 03, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html [No Types Assigned] -
CVE Modified by [email protected]
Mar. 03, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html [No Types Assigned] -
Modified Analysis by [email protected]
Jan. 30, 2023
Action Type Old Value New Value Changed Reference Type https://www.debian.org/security/2023/dsa-5324 No Types Assigned https://www.debian.org/security/2023/dsa-5324 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jan. 26, 2023
Action Type Old Value New Value Added Reference https://www.debian.org/security/2023/dsa-5324 [No Types Assigned] -
Initial Analysis by [email protected]
Jan. 23, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 Mailing List, Patch, Vendor Advisory Changed Reference Type https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 No Types Assigned https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 Patch, Vendor Advisory Changed Reference Type https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html No Types Assigned https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html Third Party Advisory Changed Reference Type https://www.spinics.net/lists/netdev/msg555705.html No Types Assigned https://www.spinics.net/lists/netdev/msg555705.html Exploit, Mailing List, Third Party Advisory Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 6.1.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-47929 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-47929
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.02 }} 0.00%
score
0.02900
percentile