========================================================================== Ubuntu Security Notice USN-2771-1 October 15, 2015
A security issue affects these releases of Ubuntu and its derivatives:
Click could be made to allow malicious apps unintended access to the system.
Software Description: - click: Click package manager
It was discovered that click did not properly perform input sanitization during click package installation. If a user were tricked into installing a crafted click package, a remote attacker could exploit this to escalate privileges by tricking click into installing lenient security policy for the installed application.
The problem can be corrected by updating your system to the following package versions:
Ubuntu 15.04: python3-click 0.4.38.5ubuntu0.2
Ubuntu 14.04 LTS: python3-click 0.4.21.1ubuntu0.2
In general, a standard system update will make all the necessary changes. A corresponding update will be provided to Ubuntu Phone users soon.
For more information, please see: https://insights.ubuntu.com/2015/10/15/update-on-ubuntu-phone-security-issue/
References: http://www.ubuntu.com/usn/usn-2771-1 https://launchpad.net/bugs/1506467
Package Information: https://launchpad.net/ubuntu/+source/click/0.4.38.5ubuntu0.2 https://launchpad.net/ubuntu/+source/click/0.4.21.1ubuntu0.2
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