vulnerability
CentOS Linux: CVE-2021-4154: Important: kernel-rt security and bug fix update (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Feb 4, 2022 | Mar 11, 2022 | May 25, 2023 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Feb 4, 2022
Added
Mar 11, 2022
Modified
May 25, 2023
Description
A use-after-free flaw was found in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c in the Linux kernel's cgroup v1 parser. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system.
Solutions
centos-upgrade-kernelcentos-upgrade-kernel-rtcentos-upgrade-kpatch-patch-4_18_0-348centos-upgrade-kpatch-patch-4_18_0-348-debuginfocentos-upgrade-kpatch-patch-4_18_0-348-debugsourcecentos-upgrade-kpatch-patch-4_18_0-348_12_2centos-upgrade-kpatch-patch-4_18_0-348_12_2-debuginfocentos-upgrade-kpatch-patch-4_18_0-348_12_2-debugsourcecentos-upgrade-kpatch-patch-4_18_0-348_2_1centos-upgrade-kpatch-patch-4_18_0-348_2_1-debuginfocentos-upgrade-kpatch-patch-4_18_0-348_2_1-debugsourcecentos-upgrade-kpatch-patch-4_18_0-348_7_1centos-upgrade-kpatch-patch-4_18_0-348_7_1-debuginfocentos-upgrade-kpatch-patch-4_18_0-348_7_1-debugsource
References
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