USN-1937-1: PHP vulnerability

Ubuntu Security Notice USN-1937-1

5th September, 2013

php5 vulnerability

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

  • Ubuntu 13.04
  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 10.04 LTS

Summary

Fraudulent security certificates could allow sensitive information to be exposed when accessing the Internet.

Software description

  • php5 - HTML-embedded scripting language interpreter

Details

It was discovered that PHP did not properly handle certificates with NULL
characters in the Subject Alternative Name field. An attacker could exploit
this to perform a man in the middle attack to view sensitive information or
alter encrypted communications.

Update instructions

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

Ubuntu 13.04:
php5-cli 5.4.9-4ubuntu2.3
php5-cgi 5.4.9-4ubuntu2.3
libapache2-mod-php5 5.4.9-4ubuntu2.3
Ubuntu 12.10:
php5-cli 5.4.6-1ubuntu1.4
php5-cgi 5.4.6-1ubuntu1.4
libapache2-mod-php5 5.4.6-1ubuntu1.4
Ubuntu 12.04 LTS:
php5-cli 5.3.10-1ubuntu3.8
php5-cgi 5.3.10-1ubuntu3.8
libapache2-mod-php5 5.3.10-1ubuntu3.8
Ubuntu 10.04 LTS:
php5-cli 5.3.2-1ubuntu4.21
php5-cgi 5.3.2-1ubuntu4.21
libapache2-mod-php5 5.3.2-1ubuntu4.21
libapache2-mod-php5filter 5.3.2-1ubuntu4.21

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-2013-4248