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CVE-2022-23516

HIGH

7.5

Description

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. 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. This issue is patched in version 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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published12/14/2022

Last Modified11/3/2025

Sourcenvd

Honeypot Sightings0

Affected Products

loofah_project:loofah

Weaknesses (CWE)

CWE-674

References

https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm(security-advisories@github.com)

https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html(security-advisories@github.com)

https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2023/09/msg00011.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2024/09/msg00044.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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