CVEvulnerability

CVE-2021-4197

7.8 HIGH Published 2022-03-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-03-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-287

Description

An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.

Affected configurations

• linux linux kernel (>= 4.2 < 4.14.276) • linux linux kernel (>= 4.15 < 4.19.238) • linux linux kernel (>= 4.20 < 5.4.189) • linux linux kernel (>= 5.5 < 5.10.111) • linux linux kernel (>= 5.11 < 5.15.14) • oracle communications cloud native core binding support function 22.1.1 • oracle communications cloud native core binding support function 22.1.3 • oracle communications cloud native core binding support function 22.2.0 • debian debian linux 10.0 • broadcom brocade fabric operating system firmware • netapp h300s firmware • netapp h500s firmware • netapp h700s firmware • netapp h410s firmware • netapp h410c firmware

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References