USN-4166-1: PHP vulnerability

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

CVE-2019-11043

Source: USN-4166-1: PHP vulnerability

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