CVE-2021-4197

2022-03-2319:46:43

CWE-287

redhat

www.cve.org

8.1 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

9.8%

JSON

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.

CNA Affected

[
  {
    "product": "kernel",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Linux kernel 5.17-rc1"
      }
    ]
  }
]