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CVE-2021-39212

4.4 · MEDIUM

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may use, copy, modify, and distribute in both open and proprietary applications.

Published Sep 13, 2021CWE-668EPSS 0.35%

Overview

CVE-2021-39212 is a medium-severity vulnerability. It was published on September 13, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.4, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may use, copy, modify, and distribute in both open and proprietary applications. In affected versions and in certain cases, Postscript files could be read and written when specifically excluded by a `module` policy in `policy.xml`. ex. <policy domain="module" rights="none" pattern="PS" />. The issue has been resolved in ImageMagick 7.1.0-7 and in 6.9.12-22. Fortunately, in the wild, few users utilize the `module` policy and instead use the `coder` policy that is also our workaround recommendation: <policy domain="coder" rights="none" pattern="{PS,EPI,EPS,EPSF,EPSI}" />.

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

GitHubgithub.com/ImageMagick/ImageMagick/commit/01faddbe2711a4156180c4a92837e2f23683cc68GitHubgithub.com/ImageMagick/ImageMagick/commit/35893e7cad78ce461fcaffa56076c11700ba5e4eGitHubgithub.com/ImageMagick/ImageMagick/security/advisories/GHSA-qvhr-jj4p-j2qrReflists.debian.org/debian-lts-announce/2023/05/msg00020.htmlGitHubgithub.com/ImageMagick/ImageMagick/commit/01faddbe2711a4156180c4a92837e2f23683cc68GitHubgithub.com/ImageMagick/ImageMagick/commit/35893e7cad78ce461fcaffa56076c11700ba5e4eGitHubgithub.com/ImageMagick/ImageMagick/security/advisories/GHSA-qvhr-jj4p-j2qrReflists.debian.org/debian-lts-announce/2023/05/msg00020.html

How CyberStrike helps

Frequently asked questions

What is CVE-2021-39212?

CVE-2021-39212 is a medium-severity vulnerability. It was published on September 13, 2021 and has a CVSS 3.1 base score of 4.4 (MEDIUM).

How severe is CVE-2021-39212?

This vulnerability has a CVSS 3.1 base score of 4.4, 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-2021-39212?

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-2021-39212?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-39212 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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