CVE-2018-16470

Name	CVE-2018-16470
Description	There is a possible DoS vulnerability in the multipart parser in Rack before 2.0.6. Specially crafted requests can cause the multipart parser to enter a pathological state, causing the parser to use CPU resources disproportionate to the request size.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
Debian Bugs	913003

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
ruby-rack (PTS)	buster	2.0.6-3	fixed
	buster (security)	2.0.6-3+deb10u3	fixed
	bullseye	2.1.4-3	fixed
	bookworm, sid	2.2.6.4-1	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
ruby-rack	source	experimental	2.0.6-1			913003
ruby-rack	source	(unstable)	(not affected)

Notes

- ruby-rack <not-affected> (Only affects >= 2.0.4)
Introduced by: https://github.com/rack/rack/commit/c43217a81917de03aa6ceb1aa485ae69b8bb4598 (2.0.4)
Fixed by: https://github.com/rack/rack/commit/37c1160b2360074d20858792f23a7eb3afeabebd (2.0.6)