USN-3646-2: PHP vulnerabilities

16 May 2018

php5 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 ESM

Summary

Several security issues were fixed in PHP.

Software Description

  • php5 - HTML-embedded scripting language interpreter

Details

USN-3646-1 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 opcache access controls when configured to use PHP-FPM. A local user could possibly use this issue to obtain sensitive information from another user’s PHP applications. (CVE-2018-10545)

It was discovered that the PHP PHAR error pages incorrectly filtered certain data. A remote attacker could possibly use this issue to perform a reflected XSS attack. (CVE-2018-10547)

It was discovered that PHP incorrectly handled LDAP. A malicious remote LDAP server could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2018-10548)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 12.04 ESM
libapache2-mod-php5 - 5.3.10-1ubuntu3.31
php5-cgi - 5.3.10-1ubuntu3.31
php5-cli - 5.3.10-1ubuntu3.31
php5-fpm - 5.3.10-1ubuntu3.31

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.

References