Several security issues were fixed in PHP.
Thomas Jarosch discovered that PHP incorrectly limited recursion in the fileinfo extension. A remote attacker could possibly use this issue to cause PHP to consume resources or crash, resulting in a denial of service. (CVE-2014-8117)
18 March 2015
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in PHP.
Thomas Jarosch discovered that PHP incorrectly limited recursion in the fileinfo extension. A remote attacker could possibly use this issue to cause PHP to consume resources or crash, resulting in a denial of service. (CVE-2014-8117)
S. Paraschoudis discovered that PHP incorrectly handled memory in the enchant binding. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2014-9705)
Taoguang Chen discovered that PHP incorrectly handled unserializing objects. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-0273)
It was discovered that PHP incorrectly handled memory in the phar extension. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2015-2301)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.