Uncontrolled Recursion Affecting loofah package, versions >=2.2.0, <2.19.1
Threat Intelligence
EPSS
0.1% (43rd
percentile)
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Test your applications- Snyk ID SNYK-RUBY-LOOFAH-3168649
- published 14 Dec 2022
- disclosed 13 Dec 2022
- credit Unknown
Introduced: 13 Dec 2022
CVE-2022-23516 Open this link in a new tabHow to fix?
Upgrade loofah to version 2.19.1 or higher.
Overview
loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri.
Affected versions of this package are vulnerable to Uncontrolled Recursion when it uses recursion for sanitizing CDATA sections, making it susceptible to stack exhaustion and raising a SystemStackError exception, which might result in CPU resource consumption.
Workaround
Users who are unable to upgrade may be able to mitigate this vulnerability by limiting the length of the strings that are sanitized.
References
CVSS Scores
version 3.1