GMS-2022-8289: Duplicate of ./gem/loofah/CVE-2022-23514.yml

December 13, 2022

Summary

Loofah < 2.19.1 contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to sanitize certain SVG attributes. This may lead to a denial of service through CPU resource consumption.

Mitigation

Upgrade to Loofah >= 2.19.1.

Severity

The Loofah maintainers have evaluated this as [High Severity 7.5 (CVSS3.1)](https://www.first.org/cvss/calculator/3.1#.

References

CWE - CWE-1333: Inefficient Regular Expression Complexity (4.9)
https://hackerone.com/reports/1684163

Credit

This vulnerability was responsibly reported by @ooooooo-q (https://github.com/ooooooo-q).

References

github.com/advisories/GHSA-486f-hjj9-9vhh
github.com/flavorjones/loofah/commit/a6e0a1ab90675a17b1b2be189129d94139e4b143
github.com/flavorjones/loofah/security/advisories/GHSA-486f-hjj9-9vhh

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