USN-3382-1: PHP vulnerabilities

10 August 2017

php5, php7.0 vulnerabilities

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

  • Ubuntu 17.04
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in PHP.

Software Description

  • php7.0 - HTML-embedded scripting language interpreter
  • php5 - HTML-embedded scripting language interpreter

Details

It was discovered that the PHP opcache created keys for files it cached based on their filepath. A local attacker could possibly use this issue in a shared hosting environment to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS. (CVE-2015-8994)

It was discovered that the PHP URL parser incorrectly handled certain URI components. A remote attacker could possibly use this issue to bypass hostname-specific URL checks. This issue only affected Ubuntu 14.04 LTS. (CVE-2016-10397)

It was discovered that PHP incorrectly handled certain boolean parameters when unserializing data. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS. (CVE-2017-11143)

Sebastian Li, Wei Lei, Xie Xiaofei, and Liu Yang discovered that PHP incorrectly handled the OpenSSL sealing function. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11144)

Wei Lei and Liu Yang discovered that the PHP date extension incorrectly handled memory. A remote attacker could possibly use this issue to disclose sensitive information from the server. (CVE-2017-11145)

It was discovered that PHP incorrectly handled certain PHAR archives. A remote attacker could use this issue to cause PHP to crash or disclose sensitive information. This issue only affected Ubuntu 14.04 LTS. (CVE-2017-11147)

It was discovered that PHP incorrectly handled locale length. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11362)

Wei Lei and Liu Yang discovered that PHP incorrectly handled parsing ini files. An attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. (CVE-2017-11628)

It was discovered that PHP mbstring incorrectly handled certain regular expressions. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-9224, CVE-2017-9226, CVE-2017-9227, CVE-2017-9228, CVE-2017-9229)

Update instructions

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

Ubuntu 17.04
libapache2-mod-php7.0 - 7.0.22-0ubuntu0.17.04.1
php7.0-cgi - 7.0.22-0ubuntu0.17.04.1
php7.0-cli - 7.0.22-0ubuntu0.17.04.1
php7.0-fpm - 7.0.22-0ubuntu0.17.04.1
Ubuntu 16.04 LTS
libapache2-mod-php7.0 - 7.0.22-0ubuntu0.16.04.1
php7.0-cgi - 7.0.22-0ubuntu0.16.04.1
php7.0-cli - 7.0.22-0ubuntu0.16.04.1
php7.0-fpm - 7.0.22-0ubuntu0.16.04.1
Ubuntu 14.04 LTS
libapache2-mod-php5 - 5.5.9+dfsg-1ubuntu4.22
php5-cgi - 5.5.9+dfsg-1ubuntu4.22
php5-cli - 5.5.9+dfsg-1ubuntu4.22
php5-fpm - 5.5.9+dfsg-1ubuntu4.22

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In Ubuntu 16.04 LTS and Ubuntu 17.04, this update uses a new upstream release, which includes additional bug fixes.

In general, a standard system update will make all the necessary changes.

References