USN-1351-1: AccountsService vulnerability

Ubuntu Security Notice USN-1351-1

31st January, 2012

accountsservice vulnerability

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

  • Ubuntu 11.10

Summary

AccountsService could be made to overwrite files as the administrator.

Software description

  • accountsservice - query and manipulate user account information

Details

Hayawardh Vijayakumar discovered that AccountsService incorrectly handled
privileges when modifying the language settings on Ubuntu. A local attacker
could exploit this issue to modify arbitrary files, and possibly create a
denial of service or obtain increased privileges.

Update instructions

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

Ubuntu 11.10:
accountsservice 0.6.14-1git1ubuntu1.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

CVE-2011-4406