vulnerability
Huawei EulerOS: CVE-2023-4921: kernel security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 2023-09-12 | 2024-02-12 | 2025-02-20 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
2023-09-12
Added
2024-02-12
Modified
2025-02-20
Description
A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation.
When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue().
We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8.
Solution(s)
huawei-euleros-2_0_sp5-upgrade-kernelhuawei-euleros-2_0_sp5-upgrade-kernel-develhuawei-euleros-2_0_sp5-upgrade-kernel-headershuawei-euleros-2_0_sp5-upgrade-kernel-toolshuawei-euleros-2_0_sp5-upgrade-kernel-tools-libshuawei-euleros-2_0_sp5-upgrade-perfhuawei-euleros-2_0_sp5-upgrade-python-perf
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