========================================================================== Ubuntu Security Notice USN-3566-1 February 12, 2018 php5 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 14.04 LTS Summary: Several security issues were fixed in PHP. Software Description: - php5: HTML-embedded scripting language interpreter Details: It was discovered that PHP incorrectly handled the PHAR 404 error page. A remote attacker could possibly use this issue to conduct cross-site scripting (XSS) attacks. (CVE-2018-5712) It was discovered that PHP incorrectly handled memory when unserializing certain data. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-12933) It was discovered that PHP incorrectly handled 'front of' and 'back of' date directives. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2017-16642) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 14.04 LTS: libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.23 php5-cgi 5.5.9+dfsg-1ubuntu4.23 php5-cli 5.5.9+dfsg-1ubuntu4.23 php5-fpm 5.5.9+dfsg-1ubuntu4.23 In general, a standard system update will make all the necessary changes. References: https://www.ubuntu.com/usn/usn-3566-1 CVE-2017-12933, CVE-2017-16642, CVE-2018-5712 Package Information: https://launchpad.net/ubuntu/+source/php5/5.5.9+dfsg-1ubuntu4.23