Several security issues were fixed in PHP.
USN-3600-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM.
15 May 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in PHP.
USN-3600-1 fixed a vulnerability in PHP. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory 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 parsing certain HTTP responses. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-7584)
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.