Ubuntu Security Notice 1485-1 - 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.
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Ubuntu Security Notice USN-1485-1
June 28, 2012
accountsservice vulnerability
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 12.04 LTS
- Ubuntu 11.10
Summary:
AccountsService could be made to read arbitrary files as the administrator.
Software Description:
- accountsservice: query and manipulate user account information
Details:
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 12.04 LTS:
accountsservice 0.6.15-2ubuntu9.1
libaccountsservice0 0.6.15-2ubuntu9.1
Ubuntu 11.10:
accountsservice 0.6.14-1git1ubuntu1.2
libaccountsservice0 0.6.14-1git1ubuntu1.2
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-1485-1
CVE-2012-2737
Package Information:
https://launchpad.net/ubuntu/+source/accountsservice/0.6.15-2ubuntu9.1
https://launchpad.net/ubuntu/+source/accountsservice/0.6.14-1git1ubuntu1.2