Ubuntu Security Notice USN-3996-1
May 29, 2019
GNU Screen vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
GNU Screen could be made to crash or run programs as your login if it
opened a specially crafted file or received specially crafted input.
- screen: terminal multiplexer with VT100/ANSI terminal emulation
Kuang-che Wu discovered that GNU Screen improperly handled certain input. An
attacker could use this issue to cause GNU Screen to crash, resulting in a
denial of service or the execution of arbitrary code.
The problem can be corrected by updating your system to the following