GMS-2022-8298: Duplicate of ./gem/rails-html-sanitizer/CVE-2022-23517.yml

December 13, 2022

Summary

Certain configurations of rails-html-sanitizer < 1.4.4 use 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 rails-html-sanitizer >= 1.4.4.

Severity

The 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-5x79-w82f-gw8w
github.com/rails/rails-html-sanitizer/commit/56c61c0cebd1e493e8ad7bca2a0191609a4a6979
github.com/rails/rails-html-sanitizer/security/advisories/GHSA-5x79-w82f-gw8w
hackerone.com/reports/1684163

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