CVE-2019-15845

Name	CVE-2019-15845
Description	Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 mishandles path checking within File.fnmatch functions.
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-2007-1, DSA-4586-1, DSA-4587-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
jruby (PTS)	bookworm	9.3.9.0+ds-8	fixed
	sid, trixie	9.4.8.0+ds-2	fixed

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

Package	Type	Release	Fixed Version	Origin
jruby	source	(unstable)	(not affected)
ruby2.1	source	jessie	2.1.5-2+deb8u8	DLA-2007-1
ruby2.1	source	(unstable)	(unfixed)
ruby2.3	source	stretch	2.3.3-1+deb9u7	DSA-4587-1
ruby2.3	source	(unstable)	(unfixed)
ruby2.5	source	buster	2.5.5-3+deb10u1	DSA-4586-1
ruby2.5	source	(unstable)	2.5.7-1

Notes

- jruby <not-affected> (Dir.java in JRuby does not have this C string handling bug from dir.c in Ruby)
https://github.com/ruby/ruby/commit/a0a2640b398cffd351f87d3f6243103add66575b
https://hackerone.com/reports/449617
https://www.ruby-lang.org/en/news/2019/10/01/nul-injection-file-fnmatch-cve-2019-15845/