Ubuntu: 1543-1: Config-IniFiles vulnerability
Posted by Benjamin D. Thomas   
Ubuntu Config-IniFiles could be made to overwrite arbitrary files.
==========================================================================
Ubuntu Security Notice USN-1543-1
August 20, 2012

libconfig-inifiles-perl vulnerability
==========================================================================

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

- Ubuntu 12.04 LTS
- Ubuntu 11.10
- Ubuntu 11.04
- Ubuntu 10.04 LTS

Summary:

Config-IniFiles could be made to overwrite arbitrary files.

Software Description:
- libconfig-inifiles-perl: Perl module for working with INI configuration files

Details:

It was discovered that the perl Config::IniFiles module created temporary
files in an unsafe manner. A local user with write access to the directory
containing a configuration file that Config-IniFiles manipulates could
exploit this to overwrite arbitrary files.

Update instructions:

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

Ubuntu 12.04 LTS:
  libconfig-inifiles-perl         2.68-1ubuntu0.12.04.1

Ubuntu 11.10:
  libconfig-inifiles-perl         2.68-1ubuntu0.11.10.1

Ubuntu 11.04:
  libconfig-inifiles-perl         2.58-1ubuntu0.1

Ubuntu 10.04 LTS:
  libconfig-inifiles-perl         2.52-1ubuntu0.1

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

References:
  http://www.ubuntu.com/usn/usn-1543-1
  CVE-2012-2451

Package Information:
  https://launchpad.net/ubuntu/+source/libconfig-inifiles-perl/2.68-1ubuntu0.12.04.1
  https://launchpad.net/ubuntu/+source/libconfig-inifiles-perl/2.68-1ubuntu0.11.10.1
  https://launchpad.net/ubuntu/+source/libconfig-inifiles-perl/2.58-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/libconfig-inifiles-perl/2.52-1ubuntu0.1