CVE-2022-23516

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.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1026083&gt;