vulnerability
CentOS Linux: CVE-2023-3776: Important: kpatch-patch security update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 2023-07-21 | 2023-09-13 | 2025-01-28 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
2023-07-21
Added
2023-09-13
Modified
2025-01-28
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)
centos-upgrade-kernelcentos-upgrade-kernel-rtcentos-upgrade-kpatch-patch-3_10_0-1160_102_1centos-upgrade-kpatch-patch-3_10_0-1160_102_1-debuginfocentos-upgrade-kpatch-patch-3_10_0-1160_90_1centos-upgrade-kpatch-patch-3_10_0-1160_90_1-debuginfocentos-upgrade-kpatch-patch-3_10_0-1160_92_1centos-upgrade-kpatch-patch-3_10_0-1160_92_1-debuginfocentos-upgrade-kpatch-patch-3_10_0-1160_95_1centos-upgrade-kpatch-patch-3_10_0-1160_95_1-debuginfocentos-upgrade-kpatch-patch-3_10_0-1160_99_1centos-upgrade-kpatch-patch-3_10_0-1160_99_1-debuginfo
References
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