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CVE-2022-0563

5.5 · MEDIUM

A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support.

Published Feb 21, 2022CWE-209EPSS 0.43%

Overview

CVE-2022-0563 is a medium-severity vulnerability. It was published on February 21, 2022 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an "INPUTRC" environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from the file. This flaw allows an unprivileged user to read root-owned files, potentially leading to privilege escalation. This flaw affects util-linux versions prior to 2.37.4.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Reflore.kernel.org/util-linux/20220214110609.msiwlm457ngoic6w%40ws.net.home/T/#uRefsecurity.gentoo.org/glsa/202401-08Refsecurity.netapp.com/advisory/ntap-20220331-0002/Reflore.kernel.org/util-linux/20220214110609.msiwlm457ngoic6w%40ws.net.home/T/#uRefsecurity.gentoo.org/glsa/202401-08Refsecurity.netapp.com/advisory/ntap-20220331-0002/

How CyberStrike helps

Frequently asked questions

What is CVE-2022-0563?

CVE-2022-0563 is a medium-severity vulnerability. It was published on February 21, 2022 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-0563?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-0563?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-0563?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-0563 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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