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CVE-2022-47929

Public on 2023-01-17
Modified on 2024-02-06
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.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core kernel 2023-02-03 19:19 ALAS2-2023-1932
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-01-31 20:02 ALAS2KERNEL-5.10-2023-026
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-01-31 20:02 ALAS2KERNEL-5.15-2023-013
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-02-17 00:07 ALAS2KERNEL-5.4-2023-042

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2022-47929 Mitre: CVE-2022-47929 FAQs regarding Amazon Linux ALAS/CVE Severity