[USN-3996-1] GNU Screen vulnerability
Mike Salvatore
mike.salvatore at canonical.com
Wed May 29 14:17:29 UTC 2019
==========================================================================
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
Summary:
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.
Software Description:
- screen: terminal multiplexer with VT100/ANSI terminal emulation
Details:
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.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.04 ESM:
screen 4.1.0~20120320gitdb59704-9ubuntu0.1~esm1
Ubuntu 12.04 ESM:
screen 4.0.3-14ubuntu8.1
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3996-1
CVE-2015-6806
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