CVE-2024-4067

Aliases:GHSA-952p-6rrq-rcjv
Advisory lineage Upstream: 0 Downstream: 6
Analyzed
Published: 13 May 2024, 10:04
Last modified:17 Sept 2024, 19:47

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
5.3 MEDIUM
v3.1 (cve.org)
EPSS Score
1.43% LOW
1% probability +1.30%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

13 May 2024, 10:04
Published
Vulnerability first disclosed
17 Sept 2024, 19:47
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS Trends

Current EPSS score: 1.43%• Percentile: 70%

Techniques & Countermeasures

  • CWE-1333•Inefficient Regular Expression Complexity

    The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

Affected Systems

  • jonschlinkert•micromatch

    < 4.0.8

  • micromatch•micromatch

    < 4.0.8

  • Npm•micromatch

    < 4.0.8

References (13)