1. Ubuntu Security Notices
  2. USN-3566-1

USN-3566-1: PHP vulnerabilities

Publication date

12 February 2018

Overview

Several security issues were fixed in PHP.

Releases

Packages

  • php5 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP incorrectly handled the PHAR 404 error page. A
remote attacker could possibly use this issue to conduct cross-site
scripting (XSS) attacks. (CVE-2018-5712)

It was discovered that PHP incorrectly handled memory when unserializing
certain data. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-12933)

It was discovered that PHP incorrectly handled ‘front of’ and ‘back of’
date directives. A remote attacker could possibly use this issue to obtain
sensitive information. (CVE-2017-16642)

It was discovered that PHP incorrectly handled the PHAR 404 error page. A
remote attacker could possibly use this issue to conduct cross-site
scripting (XSS) attacks. (CVE-2018-5712)

It was discovered that PHP incorrectly handled memory when unserializing
certain data. A remote attacker could use this issue to cause PHP to crash,
resulting in a denial of service, or possibly execute arbitrary code.
(CVE-2017-12933)

It was discovered that PHP incorrectly handled ‘front of’ and ‘back of’
date directives. A remote attacker could possibly use this issue to obtain
sensitive information. (CVE-2017-16642)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
14.04 trusty libapache2-mod-php5 –  5.5.9+dfsg-1ubuntu4.23
php5-cgi –  5.5.9+dfsg-1ubuntu4.23
php5-cli –  5.5.9+dfsg-1ubuntu4.23
php5-fpm –  5.5.9+dfsg-1ubuntu4.23

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References

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