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7.8High

Linux Linux Kernel

CVE-2022-1011

A use-after-free flaw was found in the Linux kernel’s FUSE filesystem in the way a user triggers write(). This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation.

What this means for your business

  • It affects Linux Kernel. It matters if your company, or a supplier that handles your data, runs it.
  • An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.
  • FIRST's prediction model gives it a 1% chance of attack attempts being seen in the next 30 days, ranking above 65% of all known flaws.

What to do

  1. 1Check whether your company or your suppliers run Linux Kernel, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

Check if you’re exposedBook a call

Scoring

CVSS
7.8 (v3.1)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-416
Assigned by
secalert@redhat.com

Dates

Published
2022-03-18
Last modified
2026-08-26
Sources
NVD

Affected products

  • Linux Linux Kernel2.6.35 - 4.9.320, 4.10 - 4.14.276, 4.15 - 4.19.238, 4.20 - 5.4.185, 5.5 - 5.10.106, 5.11 - 5.15.29, 5.16 - 5.16.15, 5.17
  • Fedoraproject Fedora34, 35
  • Redhat Build Of Quarkus2.0
  • Redhat Developer Tools1.0
  • Redhat Enterprise Linux6.0, 7.0, 8.0, 8.6
  • Redhat Enterprise Linux Eus8.6
  • Redhat Enterprise Linux For Ibm Z Systems8.0
  • Redhat Enterprise Linux For Ibm Z Systems Eus8.6
  • Redhat Enterprise Linux For Power Little Endian8.0
  • Redhat Enterprise Linux For Power Little Endian Eus8.6
  • Redhat Enterprise Linux For Real Time8
  • Redhat Enterprise Linux For Real Time For Nfv8

As listed in the NVD configuration data. Not a statement about your estate.

References