CVE-2022-4318

Name: CVE-2022-4318
Creator: NVD / NIST
Published: 2023-09-25T20:15:10.59+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.27%

Last modified Jun 17, 2026

CVE-2022-4318 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.. EPSS estimates a 0.27% chance of exploitation in the next 30 days.

Description

A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

Metrics

CVSS 3.1

7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

0.27%

17.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Kubernetes	Cri-O	All versions
Redhat	Openshift Container Platform For Arm64	4.12
Redhat	Openshift Container Platform For Linuxone	4.12
Redhat	Openshift Container Platform For Power	4.12
Redhat	Openshift Container Platform Ibm Z Systems	4.12
Fedoraproject	Extra Packages For Enterprise Linux	8.0
Fedoraproject	Fedora	36
Fedoraproject	Fedora	37
Redhat	Openshift Container Platform For Arm64	4.11
Redhat	Openshift Container Platform For Linuxone	4.11
Redhat	Openshift Container Platform For Power	4.11
Redhat	Openshift Container Platform Ibm Z Systems	4.11

References

https://access.redhat.com/errata/RHSA-2023:1033Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:1503Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-4318Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2152703Issue Tracking, Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:1033Third Party Advisory
https://access.redhat.com/errata/RHSA-2023:1503Third Party Advisory
https://access.redhat.com/security/cve/CVE-2022-4318Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2152703Issue Tracking, Third Party Advisory

Timeline

Published: Sep 25, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-4318?

A vulnerability was found in cri-o. This issue allows the addition of arbitrary lines into /etc/passwd by use of a specially crafted environment variable.

How severe is CVE-2022-4318?

CVE-2022-4318 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.27% probability of exploitation in the next 30 days.

How do I fix CVE-2022-4318?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-4318?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST