CVE-2018-19837

Name	CVE-2018-19837
Description	In LibSass prior to 3.5.5, Sass::Eval::operator()(Sass::Binary_Expression*) inside eval.cpp allows attackers to cause a denial-of-service resulting from stack consumption via a crafted sass file, because of certain incorrect parsing of '%' as a modulo operator in parser.cpp.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
libsass (PTS)	stretch	3.4.3-1	vulnerable
	buster	3.5.5-4	fixed
	bullseye	3.6.4+20201122-1	fixed
	bookworm	3.6.5+20220909-1	fixed
	sid, trixie	3.6.5+20231221-3	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libsass	source	(unstable)	3.5.4+20180621~c0a6cf3-1

Notes

[stretch] - libsass <no-dsa> (Minor issue)
https://github.com/sass/libsass/commit/210fdff7a65370c2ae24e022a2b35da8c423cc5f
https://github.com/sass/libsass/issues/2659