GMS-2022-8288: Duplicate of ./gem/loofah/CVE-2022-23516.yml

December 13, 2022

Summary

Loofah >= 2.2.0, < 2.19.1 uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception. This may lead to a denial of service through CPU resource consumption.

Mitigation

Upgrade to Loofah >= 2.19.1.

Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.

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-674: Uncontrolled Recursion (4.9)

References

github.com/advisories/GHSA-3x8r-x6xp-q4vm
github.com/flavorjones/loofah/commit/86f7f6364491b0099d215db858ecdc0c89ded040
github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm

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