{"id":"UBUNTU-CVE-2019-15845","details":"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.","modified":"2026-04-22T13:35:42.206621Z","published":"2019-11-20T00:00:00Z","related":["USN-4201-1"],"upstream":["CVE-2019-15845"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-15845"},{"type":"REPORT","url":"https://www.ruby-lang.org/en/news/2019/10/01/nul-injection-file-fnmatch-cve-2019-15845/"},{"type":"REPORT","url":"https://hackerone.com/reports/449617"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4201-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-15845"}],"affected":[{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~ubuntu16.04.14?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~ubuntu16.04.14"}]}],"versions":["2.3.0-1","2.3.0-2","2.3.0-4ubuntu2","2.3.0-4ubuntu3","2.3.0-5ubuntu1","2.3.1-2~16.04","2.3.1-2~16.04.2","2.3.1-2~16.04.4","2.3.1-2~16.04.5","2.3.1-2~16.04.6","2.3.1-2~16.04.7","2.3.1-2~16.04.9","2.3.1-2~16.04.10","2.3.1-2~16.04.11","2.3.1-2~16.04.12","2.3.1-2~ubuntu16.04.13"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-2~ubuntu16.04.14","binary_name":"libruby2.3"},{"binary_version":"2.3.1-2~ubuntu16.04.14","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~ubuntu16.04.14","binary_name":"ruby2.3-tcltk"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-15845.json"}},{"package":{"name":"ruby2.5","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby2.5@2.5.1-1ubuntu1.6?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.1-1ubuntu1.6"}]}],"versions":["2.5.0~preview1-1ubuntu2","2.5.0-4ubuntu1","2.5.0-4ubuntu4","2.5.0-5ubuntu1","2.5.0-6ubuntu1","2.5.1-1ubuntu1","2.5.1-1ubuntu1.1","2.5.1-1ubuntu1.2","2.5.1-1ubuntu1.4","2.5.1-1ubuntu1.5"],"ecosystem_specific":{"binaries":[{"binary_version":"2.5.1-1ubuntu1.6","binary_name":"libruby2.5"},{"binary_version":"2.5.1-1ubuntu1.6","binary_name":"ruby2.5"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-15845.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"},{"type":"Ubuntu","score":"medium"}]}