USN-4166-1: PHP vulnerability

  • Thread starter Ubuntu security notices
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Ubuntu security notices

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php7.0, php7.2, php7.3 vulnerability


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

  • Ubuntu 19.10
  • Ubuntu 19.04
  • Ubuntu 18.04 LTS
  • Ubuntu 16.04 LTS
Summary


PHP could be made to run programs if it received specially crafted network traffic.

Software Description

  • php7.3 - HTML-embedded scripting language interpreter
  • php7.2 - HTML-embedded scripting language interpreter
  • php7.0 - HTML-embedded scripting language interpreter
Details


It was discovered that PHP incorrectly handled certain paths when being used in FastCGI configurations. A remote attacker could possibly use this issue to execute arbitrary code.

Update instructions


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

Ubuntu 19.10
libapache2-mod-php7.3 - 7.3.11-0ubuntu0.19.10.1
php7.3-cgi - 7.3.11-0ubuntu0.19.10.1
php7.3-cli - 7.3.11-0ubuntu0.19.10.1
php7.3-fpm - 7.3.11-0ubuntu0.19.10.1
Ubuntu 19.04
libapache2-mod-php7.2 - 7.2.24-0ubuntu0.19.04.1
php7.2-cgi - 7.2.24-0ubuntu0.19.04.1
php7.2-cli - 7.2.24-0ubuntu0.19.04.1
php7.2-fpm - 7.2.24-0ubuntu0.19.04.1
Ubuntu 18.04 LTS
libapache2-mod-php7.2 - 7.2.24-0ubuntu0.18.04.1
php7.2-cgi - 7.2.24-0ubuntu0.18.04.1
php7.2-cli - 7.2.24-0ubuntu0.18.04.1
php7.2-fpm - 7.2.24-0ubuntu0.18.04.1
Ubuntu 16.04 LTS
libapache2-mod-php7.0 - 7.0.33-0ubuntu0.16.04.7
php7.0-cgi - 7.0.33-0ubuntu0.16.04.7
php7.0-cli - 7.0.33-0ubuntu0.16.04.7
php7.0-fpm - 7.0.33-0ubuntu0.16.04.7

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


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