CVE-2022-47929

Advisory lineage Upstream: 0 Downstream: 49
Modified
Published: 17 Jan 2023, 00:00
Last modified:04 Apr 2025, 18:01

Vulnerability Summary

Overall Risk (default)
medium
32/100
CVSS Score
5.5 MEDIUM
v3.1 (cve.org)
EPSS Score
0.04% LOW
0% probability +0.01%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

17 Jan 2023, 00:00
Published
Vulnerability first disclosed
04 Apr 2025, 18:01
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 0.04%• Percentile: 12%

Techniques & Countermeasures

  • CWE-476•NULL Pointer Dereference

    The product dereferences a pointer that it expects to be valid but is NULL.

Affected Systems

  • debian•debian_linux

    11.0

  • linux•linux_kernel

    < 6.1.6

References (7)