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[USN-1485-1] AccountsService vulnerability

Posted on 28 June 2012
Ubuntu Security

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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.=
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