CVE-2024-4067

Description

The NPM package `micromatch` prior to 4.0.8 is vulnerable to Regular Expression Denial of Service (ReDoS). The vulnerability occurs in `micromatch.braces()` in `index.js` because the pattern `.*` will greedily match anything. By passing a malicious payload, the pattern matching will keep backtracking to the input while it doesn't find the closing bracket. As the input size increases, the consumption time will also increase until it causes the application to hang or slow down. There was a merged fix but further testing shows the issue persists. This issue should be mitigated by using a safe pattern that won't start backtracking the regular expression due to greedy matching. This issue was fixed in version 4.0.8.

Reserved 2024-04-23 | Published 2024-05-13 | Updated 2024-09-17 | Assigner Checkmarx

Problem types

CWE-1333: Inefficient Regular Expression Complexity

Product status

Default status
unaffected

Any version before 4.0.8
affected

4.0.8
unaffected

Credits

Mário Teixeira, Checkmarx Research Group finder

References

devhub.checkmarx.com/cve-details/CVE-2024-4067/

github.com/micromatch/micromatch/pull/266

github.com/...ommit/03aa8052171e878897eee5d7bb2ae0ae83ec2ade

github.com/micromatch/micromatch/releases/tag/4.0.8

advisory.checkmarx.net/advisory/CVE-2024-4067/

cve.org (CVE-2024-4067)

nvd.nist.gov (CVE-2024-4067)

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