{"id":"UBUNTU-CVE-2017-17790","details":"The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.","modified":"2026-04-22T12:13:14.364633Z","published":"2017-12-20T00:00:00Z","related":["USN-3528-1"],"upstream":["CVE-2017-17790"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2017-17790"},{"type":"REPORT","url":"https://github.com/ruby/ruby/pull/1777"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3528-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2017-17790"}],"affected":[{"package":{"name":"ruby1.9.1","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby1.9.1@1.9.3.484-2ubuntu1.7?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.3.484-2ubuntu1.7"}]}],"versions":["1.9.3.194-8.1ubuntu2","1.9.3.448-1ubuntu1","1.9.3.448-1ubuntu2","1.9.3.484-1ubuntu1","1.9.3.484-1ubuntu2","1.9.3.484-2ubuntu1","1.9.3.484-2ubuntu1.1","1.9.3.484-2ubuntu1.2","1.9.3.484-2ubuntu1.3","1.9.3.484-2ubuntu1.5","1.9.3.484-2ubuntu1.6"],"ecosystem_specific":{"binaries":[{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"libruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"libtcltk-ruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"ri1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"ruby1.9.1"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"ruby1.9.1-examples"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"ruby1.9.1-full"},{"binary_version":"1.9.3.484-2ubuntu1.7","binary_name":"ruby1.9.3"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17790.json"}},{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.5?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~16.04.5"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.1-2~16.04.5","binary_name":"libruby2.3"},{"binary_version":"2.3.1-2~16.04.5","binary_name":"ruby2.3"},{"binary_version":"2.3.1-2~16.04.5","binary_name":"ruby2.3-tcltk"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17790.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}