Ubuntu Security Update USN-4457-2: Software Properties vulnerability

[LinuxBot]

USN-4457-1 fixed a vulnerability in Software. This update provides the corresponding update for Ubuntu 14.04 ESM. Original advisory details: Jason A. Donenfeld discovered that Software Properties incorrectly filtered certain escape sequences when displaying PPA descriptions. If a user were tricked into adding an arbitrary PPA, a remote attacker could possibly manipulate the screen.

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