USN-1543-1: Config-IniFiles vulnerability

Ubuntu Security Notice USN-1543-1

20th August, 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


Config-IniFiles could be made to overwrite arbitrary files.

Software description

  • libconfig-inifiles-perl - Perl module for working with INI configuration files


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 version:

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

To update your system, please follow these instructions:

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