A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 ESM
Several security issues were fixed in PHP.
- php5: HTML-embedded scripting language interpreter
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
The problem can be corrected by updating your system to the following