This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============4147240809371368526==
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="2iza3KLZ3lxlxYrbe6FEXUEqtuLWier52"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--2iza3KLZ3lxlxYrbe6FEXUEqtuLWier52
Content-Type: multipart/mixed;
 boundary="jxaiCEAnc4wkyV6A30HUmplKbIiEidtcB"

--jxaiCEAnc4wkyV6A30HUmplKbIiEidtcB
Content-Type: text/plain; charset=utf-8
Content-Language: en-C
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-4288-1
February 20, 2020

ppp vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

ppp could be made to crash or run programs if it received specially crafted
network traffic.

Software Description:
- ppp: Point-to-Point Protocol (PPP)

Details:

It was discovered that ppp incorrectly handled certain rhostname values. A
remote attacker could use this issue to cause ppp to crash, resulting in a
denial of service, or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.10:
  ppp                             2.4.7-2+4.1ubuntu4.1

Ubuntu 18.04 LTS:
  ppp                             2.4.7-2+2ubuntu1.2

Ubuntu 16.04 LTS:
  ppp                             2.4.7-1+2ubuntu1.16.04.2

In general, a standard system update will make all the necessary changes.

References:
  https://usn.ubuntu.com/4288-1
  CVE-2020-8597

Package Information:
  https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+4.1ubuntu4.1
  https://launchpad.net/ubuntu/+source/ppp/2.4.7-2+2ubuntu1.2
  https://launchpad.net/ubuntu/+source/ppp/2.4.7-1+2ubuntu1.16.04.2


--jxaiCEAnc4wkyV6A30HUmplKbIiEidtcB--

--2iza3KLZ3lxlxYrbe6FEXUEqtuLWier52
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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=joiS
-----END PGP SIGNATURE-----

--2iza3KLZ3lxlxYrbe6FEXUEqtuLWier52--


--===============4147240809371368526==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

--===============4147240809371368526==--