--===============5732920909859318643==
Content-Type: multipart/signed; micalg=pgp-sha512;
	protocol="application/pgp-signature";
 boundary="y0ulUmNC+osPPQO6"
Content-Disposition: inline


--y0ulUmNC+osPPQO6
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline

==========================================================================
Ubuntu Security Notice USN-3258-2
April 11, 2017

dovecot regression
==========================================================================

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

- Ubuntu 16.10
- Ubuntu 16.04 LTS

Summary:

USN-3258-1 introduced a regression in Dovecot.

Software Description:
- dovecot: IMAP and POP3 email server

Details:

USN-3258-1 intended to fix a vulnerability in Dovecot. Further investigation
revealed that only Dovecot versions 2.2.26 and newer were affected by the
vulnerability. Additionally, the change introduced a regression when Dovecot
was configured to use the "dict" authentication database. This update
 reverts
the change. We apologize for the inconvenience.

Original advisory details:

 It was discovered that Dovecot incorrectly handled some usernames. An attacker
 could possibly use this issue to cause Dovecot to hang or crash, resulting in
 a
 denial of service.

Update instructions:

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

Ubuntu 16.10:
  dovecot-core                    1:2.2.24-1ubuntu1.3

Ubuntu 16.04 LTS:
  dovecot-core                    1:2.2.22-1ubuntu2.4

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

References:
  http://www.ubuntu.com/usn/usn-3258-2
  http://www.ubuntu.com/usn/usn-3258-1
  CVE-2017-2669

Package Information:
  https://launchpad.net/ubuntu/+source/dovecot/1:2.2.24-1ubuntu1.3
  https://launchpad.net/ubuntu/+source/dovecot/1:2.2.22-1ubuntu2.4


--y0ulUmNC+osPPQO6
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=sr4r
-----END PGP SIGNATURE-----

--y0ulUmNC+osPPQO6--


--===============5732920909859318643==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

--===============5732920909859318643==--