[USN-4747-2] GNU Screen vulnerability
Leonidas S. Barbosa
leo.barbosa at canonical.com
Wed Feb 24 23:24:56 UTC 2021
Ubuntu Security Notice USN-4747-2
February 24, 2021
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
GNU Screen could be made to crash or run programs if it processed specially
crafted character sequences.
- screen: terminal multiplexer with VT100/ANSI terminal emulation
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
The problem can be corrected by updating your system to the following
Ubuntu 14.04 ESM:
In general, a standard system update will make all the necessary changes.
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