{"id":"UBUNTU-CVE-2020-7065","details":"In PHP versions 7.3.x below 7.3.16 and 7.4.x below 7.4.4, while using mb_strtolower() function with UTF-32LE encoding, certain invalid strings could cause PHP to overwrite stack-allocated buffer. This could lead to memory corruption, crashes and potentially code execution.","modified":"2026-04-22T14:29:18.334514Z","published":"2020-04-01T04:15:00Z","related":["USN-4330-1","USN-4330-2"],"upstream":["CVE-2020-7065"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-7065"},{"type":"REPORT","url":"http://git.php.net/?p=php-src.git;a=commitdiff;h=69155120e68d2e614d5c300974a1a5610cfa2e8b;hp=e2b5f18896ca4169859c8ca058a9926aad6e3763"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4330-1"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-4330-2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-7065"}],"affected":[{"package":{"name":"php7.4","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/php7.4@7.4.3-4ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-4ubuntu1.1"}]}],"versions":["7.4.3-4build1","7.4.3-4build2","7.4.3-4ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"libapache2-mod-php7.4"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"libphp7.4-embed"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-bcmath"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-bz2"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-cgi"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-cli"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-common"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-curl"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-dba"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-enchant"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-fpm"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-gd"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-gmp"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-imap"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-interbase"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-intl"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-json"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-ldap"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-mbstring"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-mysql"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-odbc"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-opcache"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-pgsql"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-phpdbg"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-pspell"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-readline"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-snmp"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-soap"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-sqlite3"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-sybase"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-tidy"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-xml"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-xmlrpc"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-xsl"},{"binary_version":"7.4.3-4ubuntu1.1","binary_name":"php7.4-zip"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-7065.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}