Rapid7 Vulnerability & Exploit Database

Oracle Linux: CVE-2021-4197: ELSA-2022-9480: Unbreakable Enterprise kernel-container security update (IMPORTANT) (Multiple Advisories)

Free InsightVM Trial No Credit Card Necessary
2024 Attack Intel Report Latest research by Rapid7 Labs
Back to Search

Oracle Linux: CVE-2021-4197: ELSA-2022-9480: Unbreakable Enterprise kernel-container security update (IMPORTANT) (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:H/Au:S/C:C/I:C/A:N)
Published
09/12/2021
Created
05/20/2022
Added
05/18/2022
Modified
12/06/2024

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.

Solution(s)

  • oracle-linux-upgrade-kernel

References

insightVM

Advanced vulnerability management analytics and reporting.
Key Features
  • Lightweight Endpoint Agent
  • Live Dashboards
  • Real Risk Prioritization
  • IT-Integrated Remediation Projects
  • Cloud, Virtual, and Container Assessment
  • Integrated Threat Feeds
  • Easy-to-Use RESTful API
  • Automation-Assisted Patching
  • Automated Containment
Free InsightVM Trial View All Features

With Rapid7 live dashboards, I have a clear view of all the assets on my network, which ones can be exploited, and what I need to do in order to reduce the risk in my environment in real-time. No other tool gives us that kind of value and insight.

– Scott Cheney, Manager of Information Security, Sierra View Medical Center

;