| 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, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
| References | DLA-2007-1, DSA-4586-1, DSA-4587-1 |
| NVD severity | medium |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| jruby (PTS) | stretch | 1.7.26-1+deb9u1 | fixed |
| stretch (security) | 1.7.26-1+deb9u3 | fixed | |
| bullseye, sid, buster | 9.1.17.0-3 | fixed | |
| ruby2.3 (PTS) | stretch | 2.3.3-1+deb9u8 | fixed |
| stretch (security) | 2.3.3-1+deb9u9 | fixed | |
| ruby2.5 (PTS) | buster | 2.5.5-3+deb10u3 | fixed |
| buster (security) | 2.5.5-3+deb10u2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| 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 |
- 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/