CVE-2022-0847: Linux Kernel Privilege Escalation Vulnerability

CVE-2022-0847 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-04-25

A flaw in the Linux kernel's pipe buffer structure initialization allows an unprivileged local user to write to pages in the page cache backed by read-only files. This vulnerability, known as 'Dirty Pipe', can be exploited to escalate privileges to root.

Technologies: Linux Kernel. Vendors: Linux.

Quick answers

Is CVE-2022-0847 exploited in the wild?
Yes. CVE-2022-0847 is known to be exploited in the wild, first recorded on 25 April 2022. Treat it as urgent.
How severe is CVE-2022-0847?
Critical severity, with a CVSS score of 7.8, published 25 April 2022.
Which products and versions are affected?
Linux Linux Kernel.
Is there a fix for CVE-2022-0847?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2022-0847 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2022-0847?
Check whether you run Linux Kernel. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Linux Linux Kernel

Timeline

  • 2022-04-25: disclosed
  • 2022-04-25: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
  • 2022-04-25: advisory

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