AccountsService could be made to read arbitrary files as the administrator.
Florian Weimer discovered that AccountsService incorrectly handled privileges when copying certain files to the system cache directory. A local attacker could exploit this issue to read arbitrary files, bypassing intended permissions.
28 June 2012
A security issue affects these releases of Ubuntu and its derivatives:
AccountsService could be made to read arbitrary files as the administrator.
Florian Weimer discovered that AccountsService incorrectly handled privileges when copying certain files to the system cache directory. A local attacker could exploit this issue to read arbitrary files, bypassing intended permissions.
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon