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USN-4747-2: GNU Screen vulnerability

USN-4747-2: GNU Screen vulnerability

USN-4747-1 fixed a vulnerability in screen. This update provides
the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

Felix Weinmann discovered that GNU Screen incorrectly handled certain
character sequences. A remote attacker could use this issue to cause GNU
Screen to crash, resulting in a denial of service, or possibly execute
arbitrary code.
Source: USN-4747-2: GNU Screen vulnerability

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