{"id":"UBUNTU-CVE-2021-21408","details":"Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to versions 3.1.43 and 4.0.3, template authors could run restricted static php methods. Users should upgrade to version 3.1.43 or 4.0.3 to receive a patch.","modified":"2026-01-30T01:02:38.626294Z","published":"2022-01-10T20:15:00Z","related":["USN-5348-1","USN-5348-2","USN-5348-3"],"upstream":["CVE-2021-21408"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-21408"},{"type":"REPORT","url":"https://github.com/smarty-php/smarty/commit/19ae410bf56007a5ef24441cdc6414619cfaf664"},{"type":"REPORT","url":"https://github.com/smarty-php/smarty/releases/tag/v3.1.43"},{"type":"REPORT","url":"https://github.com/smarty-php/smarty/security/advisories/GHSA-4h9c-v5vg-5m6m"},{"type":"REPORT","url":"https://github.com/smarty-php/smarty/releases/tag/v4.0.3"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5348-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5348-3"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5348-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-21408"}],"affected":[{"package":{"name":"smarty3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/smarty3@3.1.21-1ubuntu1+esm1?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.21-1ubuntu1+esm1"}]}],"versions":["3.1.21-1","3.1.21-1ubuntu1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"smarty3","binary_version":"3.1.21-1ubuntu1+esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21408.json"}},{"package":{"name":"smarty3","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/smarty3@3.1.31+20161214.1.c7d42e4+selfpack1-3ubuntu0.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.31+20161214.1.c7d42e4+selfpack1-3ubuntu0.1"}]}],"versions":["3.1.31+20161214.1.c7d42e4+selfpack1-2","3.1.31+20161214.1.c7d42e4+selfpack1-3"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.1.31+20161214.1.c7d42e4+selfpack1-3ubuntu0.1","binary_name":"smarty3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21408.json"}},{"package":{"name":"smarty3","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/smarty3@3.1.34+20190228.1.c9f0de05+selfpack1-1ubuntu0.1~esm1?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.34+20190228.1.c9f0de05+selfpack1-1ubuntu0.1~esm1"}]}],"versions":["3.1.33+20180830.1.3a78a21f+selfpack1-1","3.1.34+20190228.1.c9f0de05+selfpack1-1"],"ecosystem_specific":{"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro","binaries":[{"binary_name":"smarty3","binary_version":"3.1.34+20190228.1.c9f0de05+selfpack1-1ubuntu0.1~esm1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21408.json"}},{"package":{"name":"smarty3","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/smarty3@3.1.39-2ubuntu1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.39-2ubuntu1"}]}],"versions":["3.1.39-2"],"ecosystem_specific":{"binaries":[{"binary_name":"smarty3","binary_version":"3.1.39-2ubuntu1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-21408.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}