CVE-2021-4154
HIGHLinux Kernel < 5.4.134 - Use After Free
Title source: ruleDescription
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.
Exploits (2)
Scores
CVSS v3
8.8
EPSS
0.0084
EPSS Percentile
74.4%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Classification
CWE
CWE-416
Status
published
Affected Products (11)
linux/linux_kernel
< 5.4.134
linux/linux_kernel
redhat/virtualization
redhat/enterprise_linux
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
netapp/hci_baseboard_management_controller
Timeline
Published
Feb 04, 2022
Tracked Since
Feb 18, 2026