CVE-2013-4363

Name	CVE-2013-4363
Description	Algorithmic complexity vulnerability in Gem::Version::ANCHORED_VERSION_PATTERN in lib/rubygems/version.rb in RubyGems before 1.8.23.2, 1.8.24 through 1.8.26, 2.0.x before 2.0.10, and 2.1.x before 2.1.5, as used in Ruby 1.9.0 through 2.0.0p247, allows remote attackers to cause a denial of service (CPU consumption) via a crafted gem version that triggers a large amount of backtracking in a regular expression. NOTE: this issue is due to an incomplete fix for CVE-2013-4287.
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)
Debian Bugs	722361

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
rubygems (PTS)	bullseye	3.2.5-2	fixed
	bullseye (security)	3.2.5-2+deb11u1	fixed
	bookworm	3.3.15-2+deb12u1	fixed
	forky, sid, trixie	3.6.7-2	fixed

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

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
libgems-ruby	source	(unstable)	(unfixed)	unimportant		722361
rubygems	source	(unstable)	3.2.0~rc.1-1	unimportant		722361

Notes

Non-issue, you trust the site providing the gem with installing arbitrary code, allowing
it a potential elevated CPU consumption doesn't add any extra harm
CVE for incomplete fix for CVE-2013-4287