CVE-2022-23516

Name	CVE-2022-23516
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3565-1
Debian Bugs	1026083

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby-loofah (PTS)	buster	2.2.3-1+deb10u1	vulnerable
	buster (security)	2.2.3-1+deb10u2	fixed
	bullseye	2.7.0+dfsg-1	vulnerable
	bookworm	2.19.1-1	fixed
	sid, trixie	2.22.0-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ruby-loofah	source	buster	2.2.3-1+deb10u2		DLA-3565-1
ruby-loofah	source	(unstable)	2.19.1-1			1026083

Notes

[bullseye] - ruby-loofah <no-dsa> (Minor issue)
https://github.com/flavorjones/loofah/security/advisories/GHSA-3x8r-x6xp-q4vm
https://github.com/flavorjones/loofah/commit/86f7f6364491b0099d215db858ecdc0c89ded040