==========================================================================
Ubuntu Security Notice USN-3766-1
September 18, 2018

php5, php7.0, php7.2 vulnerabilities
==========================================================================

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

– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 LTS

Summary:

Several security issues were fixed in PHP.

Software Description:
– php7.2: HTML-embedded scripting language interpreter
– php7.0: HTML-embedded scripting language interpreter
– php5: HTML-embedded scripting language interpreter

Details:

It was discovered that PHP incorrectly handled restarting certain child
processes when php-fpm is used. A remote attacker could possibly use this
issue to cause a denial of service. This issue was only addressed in Ubuntu
18.04 LTS. (CVE-2015-9253)

It was discovered that PHP incorrectly handled certain exif tags in JPEG
images. A remote attacker could possibly use this issue to cause PHP to
crash, resulting in a denial of service. (CVE-2018-14851, CVE-2018-14883)

Update instructions:

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

Ubuntu 18.04 LTS:
libapache2-mod-php7.2 7.2.10-0ubuntu0.18.04.1
php7.2-cgi 7.2.10-0ubuntu0.18.04.1
php7.2-cli 7.2.10-0ubuntu0.18.04.1
php7.2-fpm 7.2.10-0ubuntu0.18.04.1

Ubuntu 16.04 LTS:
libapache2-mod-php7.0 7.0.32-0ubuntu0.16.04.1
php7.0-cgi 7.0.32-0ubuntu0.16.04.1
php7.0-cli 7.0.32-0ubuntu0.16.04.1
php7.0-fpm 7.0.32-0ubuntu0.16.04.1

Ubuntu 14.04 LTS:
libapache2-mod-php5 5.5.9+dfsg-1ubuntu4.26
php5-cgi 5.5.9+dfsg-1ubuntu4.26
php5-cli 5.5.9+dfsg-1ubuntu4.26
php5-fpm 5.5.9+dfsg-1ubuntu4.26

In Ubuntu 16.04 LTS and Ubuntu 18.04 LTS, 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:
https://usn.ubuntu.com/usn/usn-3766-1
CVE-2015-9253, CVE-2018-14851, CVE-2018-14883

Package Information:
https://launchpad.net/ubuntu/+source/php7.2/7.2.10-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/php7.0/7.0.32-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/php5/5.5.9+dfsg-1ubuntu4.26

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