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CVE-2018-21232

5.5 · MEDIUM

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

Published Apr 29, 2020CWE-674EPSS 1.47%

Overview

CVE-2018-21232 is a medium-severity vulnerability. It was published on April 29, 2020 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. No authentication or special privileges are required for exploitation.

Technical description

re2c before 2.0 has uncontrolled recursion that causes stack consumption in find_fixed_tags.

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

Refwww.openwall.com/lists/oss-security/2020/05/14/4GitHubgithub.com/skvadrik/re2c/issues/219Refwww.openwall.com/lists/oss-security/2020/04/27/2Refwww.openwall.com/lists/oss-security/2020/05/14/4GitHubgithub.com/skvadrik/re2c/issues/219Refwww.openwall.com/lists/oss-security/2020/04/27/2

How CyberStrike helps

Frequently asked questions

What is CVE-2018-21232?

CVE-2018-21232 is a medium-severity vulnerability. It was published on April 29, 2020 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2018-21232?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2018-21232?

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-2018-21232?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2018-21232 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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