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CVE-2022-31099

6.5 · MEDIUM

rulex is a new, portable, regular expression language.

Published Jun 27, 2022CWE-674EPSS 0.95%

Overview

CVE-2022-31099 is a medium-severity vulnerability. It was published on June 27, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

rulex is a new, portable, regular expression language. When parsing untrusted rulex expressions, the stack may overflow, possibly enabling a Denial of Service attack. This happens when parsing an expression with several hundred levels of nesting, causing the process to abort immediately. This is a security concern for you, if your service parses untrusted rulex expressions (expressions provided by an untrusted user), and your service becomes unavailable when the process running rulex aborts due to a stack overflow. The crash is fixed in version **0.4.3**. Affected users are advised to update to this version. There are no known workarounds for this issue.

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/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363GitHubgithub.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqpGitHubgithub.com/rulex-rs/rulex/commit/60aa2dc03a22d69c8800fec81f99c96958a11363GitHubgithub.com/rulex-rs/rulex/security/advisories/GHSA-v78m-2q7v-fjqp

How CyberStrike helps

Frequently asked questions

What is CVE-2022-31099?

CVE-2022-31099 is a medium-severity vulnerability. It was published on June 27, 2022 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2022-31099?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-31099?

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-2022-31099?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-31099 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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