vulnerability
Huawei EulerOS: CVE-2023-3776: kernel security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 07/21/2023 | 01/10/2024 | 02/20/2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
07/21/2023
Added
01/10/2024
Modified
02/20/2025
Description
A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation.
If tcf_change_indev() fails, fw_set_parms() will immediately return an error after incrementing or decrementing the reference counter in tcf_bind_filter(). If an attacker can control the reference counter and set it to zero, they can cause the reference to be freed, leading to a use-after-free vulnerability.
We recommend upgrading past commit 0323bce598eea038714f941ce2b22541c46d488f.
Solution(s)
huawei-euleros-2_0_sp11-upgrade-bpftoolhuawei-euleros-2_0_sp11-upgrade-kernelhuawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelistshuawei-euleros-2_0_sp11-upgrade-kernel-toolshuawei-euleros-2_0_sp11-upgrade-kernel-tools-libshuawei-euleros-2_0_sp11-upgrade-python3-perf
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