This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============6395444907440541958==
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="3YfJ2eVcObVfxw32uP1BL70a8e5EjEEbn"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--3YfJ2eVcObVfxw32uP1BL70a8e5EjEEbn
Content-Type: multipart/mixed;
 boundary="k3qCL9FT7H3fDHYVUJ2IPEJSWSWVshh9Y";
 protected-headers="v1"
From: Mike Salvatore <mike.salvatore@canonical.com>
Reply-To: security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <39c45e66-a29d-c014-742c-d0cc2eaf0092@canonical.com>
Subject: [USN-3996-1] GNU Screen vulnerability
References: <20190529135537.542E426C27AB@lillypilly.canonical.com>
In-Reply-To: <20190529135537.542E426C27AB@lillypilly.canonical.com>

--k3qCL9FT7H3fDHYVUJ2IPEJSWSWVshh9Y
Content-Type: text/plain; charset=utf-8
Content-Language: en-U
Content-Transfer-Encoding: quoted-printable

==========================================================================
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


--k3qCL9FT7H3fDHYVUJ2IPEJSWSWVshh9Y--

--3YfJ2eVcObVfxw32uP1BL70a8e5EjEEbn
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
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=1WaK
-----END PGP SIGNATURE-----

--3YfJ2eVcObVfxw32uP1BL70a8e5EjEEbn--


--===============6395444907440541958==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

--===============6395444907440541958==--