Ubuntu: 2055-1: PHP vulnerabilities
Posted by Benjamin D. Thomas   
Ubuntu Several security issues were fixed in PHP.
==========================================================================
Ubuntu Security Notice USN-2055-1
December 12, 2013

php5 vulnerabilities
==========================================================================

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

- Ubuntu 13.10
- Ubuntu 13.04
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Several security issues were fixed in PHP.

Software Description:
- php5: HTML-embedded scripting language interpreter

Details:

Stefan Esser discovered that PHP incorrectly parsed certificates. An
attacker could use a malformed certificate to cause PHP to crash, resulting
in a denial of service, or possibly execute arbitrary code. (CVE-2013-6420)

It was discovered that PHP incorrectly handled DateInterval objects. An
attacker could use this issue to cause PHP to crash, resulting in a denial
of service. (CVE-2013-6712)

Update instructions:

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

Ubuntu 13.10:
  libapache2-mod-php5             5.5.3+dfsg-1ubuntu2.1
  php5-cgi                        5.5.3+dfsg-1ubuntu2.1
  php5-cli                        5.5.3+dfsg-1ubuntu2.1

Ubuntu 13.04:
  libapache2-mod-php5             5.4.9-4ubuntu2.4
  php5-cgi                        5.4.9-4ubuntu2.4
  php5-cli                        5.4.9-4ubuntu2.4

Ubuntu 12.10:
  libapache2-mod-php5             5.4.6-1ubuntu1.5
  php5-cgi                        5.4.6-1ubuntu1.5
  php5-cli                        5.4.6-1ubuntu1.5

Ubuntu 12.04 LTS:
  libapache2-mod-php5             5.3.10-1ubuntu3.9
  php5-cgi                        5.3.10-1ubuntu3.9
  php5-cli                        5.3.10-1ubuntu3.9

Ubuntu 10.04 LTS:
  libapache2-mod-php5             5.3.2-1ubuntu4.22
  php5-cgi                        5.3.2-1ubuntu4.22
  php5-cli                        5.3.2-1ubuntu4.22

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

References:
  http://www.ubuntu.com/usn/usn-2055-1
  CVE-2013-6420, CVE-2013-6712

Package Information:
  https://launchpad.net/ubuntu/+source/php5/5.5.3+dfsg-1ubuntu2.1
  https://launchpad.net/ubuntu/+source/php5/5.4.9-4ubuntu2.4
  https://launchpad.net/ubuntu/+source/php5/5.4.6-1ubuntu1.5
  https://launchpad.net/ubuntu/+source/php5/5.3.10-1ubuntu3.9
  https://launchpad.net/ubuntu/+source/php5/5.3.2-1ubuntu4.22