CVE Vulnerability

CVE-2022-47929

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.

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=96398560f26aa07e8f2969d73c8197e6a6d10407 Patch Vendor Advisory
https://tldp.org/HOWTO/Traffic-Control-HOWTO/components.html Third Party Advisory
https://www.spinics.net/lists/netdev/msg555705.html Exploit Mailing List
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.6 Mailing List Patch
https://www.debian.org/security/2023/dsa-5324 Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Information

Published : 2023-01-17 09:15

Updated : 2023-01-30 03:15

NVD link : CVE-2022-47929

Mitre link : CVE-2022-47929

Products Affected
No products.
CWE
CWE-476