Oracle Linux: CVE-2022-47929: ELSA-2023-12206: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2022-47929: ELSA-2023-12206:Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity

4

CVSS

(AV:L/AC:L/Au:M/C:N/I:N/A:C)

Published

01/09/2023

Created

03/22/2023

Added

03/17/2023

Modified

01/23/2025

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. A NULL pointer dereference flaw was found in qdisc_graft in net/sched/sch_api.c in the Linux kernel. This issue may allow a local unprivileged user to trigger a denial of service if the alloc_workqueue function return is not validated in time of failure, resulting in a system crash or leaked internal kernel information.

Solution(s)

• oracle-linux-upgrade-kernel
• oracle-linux-upgrade-kernel-uek

References

• https://attackerkb.com/topics/cve-2022-47929
• CVE - 2022-47929
• ELSA-2023-12206
• ELSA-2023-12200
• ELSA-2023-12207
• ELSA-2023-12196
• ELSA-2023-12199
• ELSA-2023-2458
• ELSA-2023-2951

View more