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Red Hat Security Advisory

Synopsis: Moderate: dovecot security update
Advisory ID: RHSA-2014:0790-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2014-0790.html
Issue date: 2014-06-25
CVE Names: CVE-2014-3430
=====================================================================

1. Summary:

Updated dovecot packages that fix one security issue are now available for
Red Hat Enterprise Linux 6 and 7.

The Red Hat Security Response Team has rated this update as having Moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server (v. 7) – ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) – i386, x86_64

3. Description:

Dovecot is an IMAP server, written with security primarily in mind, for
Linux and other UNIX-like systems. It also contains a small POP3 server.
It supports mail in both the maildir or mbox format. The SQL drivers and
authentication plug-ins are provided as subpackages.

It was discovered that Dovecot did not properly discard connections trapped
in the SSL/TLS handshake phase. A remote attacker could use this flaw to
cause a denial of service on an IMAP/POP3 server by exhausting the pool of
available connections and preventing further, legitimate connections to the
IMAP/POP3 server to be made. (CVE-2014-3430)

All dovecot users are advised to upgrade to these updated packages, which
contain a backported patch to correct this issue. After installing the
updated packages, the dovecot service will be restarted automatically.

4. Solution:

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the
Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1096402 – CVE-2014-3430 dovecot: denial of service through maxxing out SSL connections

6. Package List:

Red Hat Enterprise Linux Server (v. 6):

Source:
dovecot-2.0.9-7.el6_5.1.src.rpm

i386:
dovecot-2.0.9-7.el6_5.1.i686.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-mysql-2.0.9-7.el6_5.1.i686.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.i686.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.i686.rpm

ppc64:
dovecot-2.0.9-7.el6_5.1.ppc.rpm
dovecot-2.0.9-7.el6_5.1.ppc64.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.ppc.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.ppc64.rpm
dovecot-mysql-2.0.9-7.el6_5.1.ppc64.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.ppc64.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.ppc64.rpm

s390x:
dovecot-2.0.9-7.el6_5.1.s390.rpm
dovecot-2.0.9-7.el6_5.1.s390x.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.s390.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.s390x.rpm
dovecot-mysql-2.0.9-7.el6_5.1.s390x.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.s390x.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.s390x.rpm

x86_64:
dovecot-2.0.9-7.el6_5.1.i686.rpm
dovecot-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-mysql-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

Source:
dovecot-2.0.9-7.el6_5.1.src.rpm

i386:
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-devel-2.0.9-7.el6_5.1.i686.rpm

ppc64:
dovecot-debuginfo-2.0.9-7.el6_5.1.ppc64.rpm
dovecot-devel-2.0.9-7.el6_5.1.ppc64.rpm

s390x:
dovecot-debuginfo-2.0.9-7.el6_5.1.s390x.rpm
dovecot-devel-2.0.9-7.el6_5.1.s390x.rpm

x86_64:
dovecot-debuginfo-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-devel-2.0.9-7.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
dovecot-2.0.9-7.el6_5.1.src.rpm

i386:
dovecot-2.0.9-7.el6_5.1.i686.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-mysql-2.0.9-7.el6_5.1.i686.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.i686.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.i686.rpm

x86_64:
dovecot-2.0.9-7.el6_5.1.i686.rpm
dovecot-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-debuginfo-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-mysql-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-pgsql-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-pigeonhole-2.0.9-7.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

Source:
dovecot-2.0.9-7.el6_5.1.src.rpm

i386:
dovecot-debuginfo-2.0.9-7.el6_5.1.i686.rpm
dovecot-devel-2.0.9-7.el6_5.1.i686.rpm

x86_64:
dovecot-debuginfo-2.0.9-7.el6_5.1.x86_64.rpm
dovecot-devel-2.0.9-7.el6_5.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
dovecot-2.2.10-4.el7_0.1.src.rpm

ppc64:
dovecot-2.2.10-4.el7_0.1.ppc.rpm
dovecot-2.2.10-4.el7_0.1.ppc64.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.ppc.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.ppc64.rpm
dovecot-mysql-2.2.10-4.el7_0.1.ppc64.rpm
dovecot-pgsql-2.2.10-4.el7_0.1.ppc64.rpm
dovecot-pigeonhole-2.2.10-4.el7_0.1.ppc64.rpm

s390x:
dovecot-2.2.10-4.el7_0.1.s390.rpm
dovecot-2.2.10-4.el7_0.1.s390x.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.s390.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.s390x.rpm
dovecot-mysql-2.2.10-4.el7_0.1.s390x.rpm
dovecot-pgsql-2.2.10-4.el7_0.1.s390x.rpm
dovecot-pigeonhole-2.2.10-4.el7_0.1.s390x.rpm

x86_64:
dovecot-2.2.10-4.el7_0.1.i686.rpm
dovecot-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.i686.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-mysql-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-pgsql-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-pigeonhole-2.2.10-4.el7_0.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
dovecot-2.2.10-4.el7_0.1.src.rpm

x86_64:
dovecot-2.2.10-4.el7_0.1.i686.rpm
dovecot-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.i686.rpm
dovecot-debuginfo-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-mysql-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-pgsql-2.2.10-4.el7_0.1.x86_64.rpm
dovecot-pigeonhole-2.2.10-4.el7_0.1.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package

7. References:

https://www.redhat.com/security/data/cve/CVE-2014-3430.html
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2014 Red Hat, Inc.
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