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Vulnerability DatabaseCVE-2021-3807
CVE-2021-3807:
JavaScript vulnerability analysis and mitigation
Overview
CVE-2021-3807 is a Regular Expression Denial of Service (ReDoS) vulnerability discovered in the nodejs-ansi-regex package. The vulnerability was identified on September 16, 2021, affecting ansi-regex versions 3.0.0, 4.0.0 through 4.1.0, 5.0.0, and 6.0.0 (CVE Mitre, Red Hat).
Technical details
The vulnerability stems from inefficient regular expression complexity in the ansi-regex package. The affected component contains a regular expression pattern that can be exploited to cause excessive CPU usage through a specially crafted input (CVE Mitre).
Impact
When successfully exploited, this vulnerability can lead to a Denial of Service (DoS) condition by causing excessive CPU usage through inefficient regular expression processing (NetApp Advisory).
Mitigation and workarounds
A fix has been implemented in the ansi-regex package through a commit that addresses the regular expression complexity issue. Users should upgrade to patched versions of the package (GitHub Commit).
Additional resources
Source: This report was generated using AI
Related JavaScript vulnerabilities:
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