{"id":"UBUNTU-CVE-2020-8161","details":"A directory traversal vulnerability exists in rack \u003c 2.2.0 that allows an attacker perform directory traversal vulnerability in the Rack::Directory app that is bundled with Rack which could result in information disclosure.","modified":"2026-01-30T02:34:22.775949Z","published":"2020-07-02T19:15:00Z","related":["USN-4561-1","USN-4561-2"],"upstream":["CVE-2020-8161"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8161"},{"type":"REPORT","url":"https://groups.google.com/forum/#!msg/rubyonrails-security/IOO1vNZTzPA/Ylzi1UYLAAAJ"},{"type":"REPORT","url":"https://github.com/rack/rack/commit/dddb7ad18ed79ca6ab06ccc417a169fde451246e"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4561-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4561-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-8161"}],"affected":[{"package":{"name":"ruby-rack","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-rack@1.6.4-3ubuntu0.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.4-3ubuntu0.2"}]}],"versions":["1.5.2-4","1.6.4-2","1.6.4-3","1.6.4-3ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rack","binary_version":"1.6.4-3ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8161.json"}},{"package":{"name":"ruby-rack","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/ruby-rack@1.6.4-4ubuntu0.2?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.4-4ubuntu0.2"}]}],"versions":["1.6.4-4","1.6.4-4ubuntu0.1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rack","binary_version":"1.6.4-4ubuntu0.2"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8161.json"}},{"package":{"name":"ruby-rack","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/ruby-rack@2.0.7-2ubuntu0.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.7-2ubuntu0.1"}]}],"versions":["2.0.6-3","2.0.7-2"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-rack","binary_version":"2.0.7-2ubuntu0.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8161.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}