This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============2529431349384348620==
Content-Type: multipart/signed; micalg=pgp-sha512;
 protocol="application/pgp-signature";
 boundary="I7AF7XH2YrRNUGDHDLIM275Xdq3mEKmtU"

This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--I7AF7XH2YrRNUGDHDLIM275Xdq3mEKmtU
Content-Type: multipart/mixed;
 boundary="eCku7ty8hZaaQtG39klltsOeEj6DUtuTB";
 protected-headers="v1"
From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <fbcb2931-8e27-a450-bb64-82dc555f9c9c@canonical.com>
Subject: [USN-3976-3] Samba regression

--eCku7ty8hZaaQtG39klltsOeEj6DUtuTB
Content-Type: text/plain; charset=utf-8
Content-Language: en-C
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-3976-3
May 27, 2019

samba regression
==========================================================================

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

USN-3976-1 introduced a regression in Samba.

Software Description:
- samba: SMB/CIFS file, print, and login server for Unix

Details:

USN-3976-1 fixed a vulnerability in Samba. The update introduced a
regression causing Samba to occasionally crash. This update fixes the
problem.

We apologize for the inconvenience.

Original advisory details:

 Isaac Boukris and Andrew Bartlett discovered that Samba incorrectly checked
 S4U2Self packets. In certain environments, a remote attacker could possibly
 use this issue to escalate privileges.

Update instructions:

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

Ubuntu 18.04 LTS:
  samba                           2:4.7.6+dfsg~ubuntu-0ubuntu2.11

Ubuntu 16.04 LTS:
  samba                           2:4.3.11+dfsg-0ubuntu0.16.04.21

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

References:
  https://usn.ubuntu.com/usn/usn-3976-3
  https://usn.ubuntu.com/usn/usn-3976-1
  https://launchpad.net/bugs/1827924

Package Information:
  https://launchpad.net/ubuntu/+source/samba/2:4.7.6+dfsg~ubuntu-0ubuntu2.11
  https://launchpad.net/ubuntu/+source/samba/2:4.3.11+dfsg-0ubuntu0.16.04.21


--eCku7ty8hZaaQtG39klltsOeEj6DUtuTB--

--I7AF7XH2YrRNUGDHDLIM275Xdq3mEKmtU
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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=eScX
-----END PGP SIGNATURE-----

--I7AF7XH2YrRNUGDHDLIM275Xdq3mEKmtU--


--===============2529431349384348620==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline

LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK

--===============2529431349384348620==--