{"id":"UBUNTU-CVE-2016-7798","details":"The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.","modified":"2026-01-30T01:17:19.804604Z","published":"2017-01-30T00:00:00Z","related":["USN-3365-1"],"upstream":["CVE-2016-7798"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2016-7798"},{"type":"REPORT","url":"https://github.com/attr-encrypted/attr_encrypted/issues/203"},{"type":"REPORT","url":"https://github.com/attr-encrypted/encryptor/pull/22"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-3365-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2016-7798"}],"affected":[{"package":{"name":"ruby1.9.1","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby1.9.1@1.9.3.484-2ubuntu1.3?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.3.484-2ubuntu1.3"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby1.9.1","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"libtcltk-ruby1.9.1","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ri1.9.1","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ruby1.9.1","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ruby1.9.1-dev","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ruby1.9.1-examples","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ruby1.9.1-full","binary_version":"1.9.3.484-2ubuntu1.3"},{"binary_name":"ruby1.9.3","binary_version":"1.9.3.484-2ubuntu1.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7798.json"}},{"package":{"name":"ruby2.0","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/ruby2.0@2.0.0.484-1ubuntu2.4?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.0.0.484-1ubuntu2.4"}]}],"versions":["2.0.0.299-2","2.0.0.343-1","2.0.0.343-1ubuntu1","2.0.0.353-1","2.0.0.353-1ubuntu1","2.0.0.484-1ubuntu1","2.0.0.484-1ubuntu2","2.0.0.484-1ubuntu2.1","2.0.0.484-1ubuntu2.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby2.0","binary_version":"2.0.0.484-1ubuntu2.4"},{"binary_name":"ruby2.0","binary_version":"2.0.0.484-1ubuntu2.4"},{"binary_name":"ruby2.0-dev","binary_version":"2.0.0.484-1ubuntu2.4"},{"binary_name":"ruby2.0-tcltk","binary_version":"2.0.0.484-1ubuntu2.4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7798.json"}},{"package":{"name":"ruby2.3","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.2?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.3.1-2~16.04.2"}]}],"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"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libruby2.3","binary_version":"2.3.1-2~16.04.2"},{"binary_name":"ruby2.3","binary_version":"2.3.1-2~16.04.2"},{"binary_name":"ruby2.3-dev","binary_version":"2.3.1-2~16.04.2"},{"binary_name":"ruby2.3-tcltk","binary_version":"2.3.1-2~16.04.2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7798.json"}},{"package":{"name":"ruby-attr-encrypted","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-attr-encrypted@1.3.4-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-attr-encrypted","binary_version":"1.3.4-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7798.json"}},{"package":{"name":"ruby-encryptor","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/ruby-encryptor@2.0.0-1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.3.0-1","2.0.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"ruby-encryptor","binary_version":"2.0.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2016/UBUNTU-CVE-2016-7798.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"low"}]}