CVE-2024-35176

Name	CVE-2024-35176
Description	REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability. The REXML gem 3.2.7 or later include the patch to fix this vulnerability. As a workaround, don't parse untrusted XMLs.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-4018-1
Debian Bugs	1071626, 1071627

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby3.1 (PTS)	bookworm, bookworm (security)	3.1.2-7+deb12u1	vulnerable

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

Package	Type	Release	Fixed Version	Origin	Debian Bugs
ruby2.5	source	(unstable)	(unfixed)
ruby2.7	source	bullseye	2.7.4-1+deb11u3	DLA-4018-1
ruby2.7	source	(unstable)	(unfixed)
ruby3.1	source	(unstable)	(unfixed)		1071626
ruby3.2	source	(unstable)	(unfixed)		1071627

Notes

[bookworm] - ruby3.1 <no-dsa> (Minor issue)
https://github.com/ruby/rexml/security/advisories/GHSA-vg3r-rm7w-2xgh
Fixed by: https://github.com/ruby/rexml/commit/4325835f92f3f142ebd91a3fdba4e1f1ab7f1cfb (v3.2.7)
https://www.ruby-lang.org/en/news/2024/05/16/dos-rexml-cve-2024-35176/