{"id":"UBUNTU-CVE-2023-1894","details":"A Regular Expression Denial of Service (ReDoS) issue was discovered in Puppet Server 7.9.2 certificate validation. An issue related to specifically crafted certificate names significantly slowed down server operations.","modified":"2026-05-20T16:13:23.111457529Z","published":"2023-05-04T23:15:00Z","upstream":["CVE-2023-1894"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-1894"},{"type":"REPORT","url":"https://www.puppet.com/security/cve/cve-2023-1894-puppet-server-redos"},{"type":"REPORT","url":"https://github.com/puppetlabs/puppetserver/pull/2700"},{"type":"REPORT","url":"https://github.com/puppetlabs/puppetserver/commit/545998b71baf70e35dc60c287f2cb2fc11ef9be2"},{"type":"REPORT","url":"https://github.com/puppetlabs/puppetserver/commit/9e0239c19bc852b98c1a63fb33998de7eae388dc"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-1894"}],"affected":[{"package":{"name":"puppet","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/puppet?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.2.4-2ubuntu2","3.3.1-1ubuntu1","3.3.1-1ubuntu2","3.3.1-1ubuntu3","3.4.2-1","3.4.3-1","3.4.3-1ubuntu1","3.4.3-1ubuntu1.1","3.4.3-1ubuntu1.2","3.4.3-1ubuntu1.3"],"ecosystem_specific":{"binaries":[{"binary_version":"3.4.3-1ubuntu1.3","binary_name":"puppet"},{"binary_name":"puppet-common","binary_version":"3.4.3-1ubuntu1.3"},{"binary_name":"puppet-el","binary_version":"3.4.3-1ubuntu1.3"},{"binary_version":"3.4.3-1ubuntu1.3","binary_name":"puppet-testsuite"},{"binary_name":"puppetmaster","binary_version":"3.4.3-1ubuntu1.3"},{"binary_name":"puppetmaster-common","binary_version":"3.4.3-1ubuntu1.3"},{"binary_name":"puppetmaster-passenger","binary_version":"3.4.3-1ubuntu1.3"},{"binary_name":"vim-puppet","binary_version":"3.4.3-1ubuntu1.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"}},{"package":{"name":"puppet","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/puppet?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.7.2-5ubuntu2","3.8.4-1ubuntu1","3.8.5-1ubuntu1","3.8.5-2","3.8.5-2ubuntu0.1","3.8.5-2ubuntu0.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"puppet","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_name":"puppet-common","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_name":"puppet-el","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_version":"3.8.5-2ubuntu0.1+esm1","binary_name":"puppet-testsuite"},{"binary_name":"puppetmaster","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_name":"puppetmaster-common","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_name":"puppetmaster-passenger","binary_version":"3.8.5-2ubuntu0.1+esm1"},{"binary_name":"vim-puppet","binary_version":"3.8.5-2ubuntu0.1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"}},{"package":{"name":"puppet","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/puppet?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.10.4-2ubuntu1","4.10.4-2ubuntu2","4.10.4-2ubuntu3","5.4.0-2ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"5.4.0-2ubuntu3","binary_name":"puppet"},{"binary_name":"puppet-common","binary_version":"5.4.0-2ubuntu3"},{"binary_name":"puppet-master","binary_version":"5.4.0-2ubuntu3"},{"binary_name":"puppet-master-passenger","binary_version":"5.4.0-2ubuntu3"},{"binary_name":"puppetmaster","binary_version":"5.4.0-2ubuntu3"},{"binary_name":"puppetmaster-passenger","binary_version":"5.4.0-2ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"}},{"package":{"name":"puppet","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/puppet?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.4.0-2ubuntu3","5.5.10-4ubuntu3"],"ecosystem_specific":{"binaries":[{"binary_version":"5.5.10-4ubuntu3","binary_name":"puppet"},{"binary_version":"5.5.10-4ubuntu3","binary_name":"puppet-common"},{"binary_name":"puppet-master","binary_version":"5.5.10-4ubuntu3"},{"binary_version":"5.5.10-4ubuntu3","binary_name":"puppet-master-passenger"},{"binary_version":"5.5.10-4ubuntu3","binary_name":"puppetmaster"},{"binary_name":"puppetmaster-passenger","binary_version":"5.5.10-4ubuntu3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-1894.json"}},{"package":{"name":"puppet","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/puppet?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.5.22-1ubuntu1","5.5.22-4","5.5.22-4ubuntu0.2"],"ecosystem_specific":{"binaries":[{"binary_version":"5.5.22-4ubuntu0.2","binary_name":"puppet"},{"binary_version":"5.5.22-4ubuntu0.2","binary_name":"puppet-master"},{"binary_version":"5.5.22-4ubuntu0.2","binary_name":"puppet-master-passenger"}]},"database_specific":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