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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: dovecot security update
Advisory ID:       RHSA-2019:2822-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2019:2822
Issue date:        2019-09-20
CVE Names:         CVE-2019-11500
====================================================================
1. Summary:

An update for dovecot is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

3. Description:

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

Security Fix(es):

* dovecot: improper NULL byte handling in IMAP and ManageSieve protocol
parsers leads to out of bounds writes (CVE-2019-11500)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

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

1741141 - CVE-2019-11500 dovecot: improper NULL byte handling in IMAP and ManageSieve protocol parsers leads to out of bounds writes

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dovecot-2.2.36-5.el8_0.1.src.rpm

aarch64:
dovecot-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-mysql-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-pgsql-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm

ppc64le:
dovecot-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-mysql-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-pgsql-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm

s390x:
dovecot-2.2.36-5.el8_0.1.s390x.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.s390x.rpm
dovecot-mysql-2.2.36-5.el8_0.1.s390x.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-pgsql-2.2.36-5.el8_0.1.s390x.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.s390x.rpm

x86_64:
dovecot-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-mysql-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-pgsql-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
dovecot-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-devel-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.aarch64.rpm

ppc64le:
dovecot-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-devel-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.ppc64le.rpm

s390x:
dovecot-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.s390x.rpm
dovecot-devel-2.2.36-5.el8_0.1.s390x.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.s390x.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.s390x.rpm

x86_64:
dovecot-2.2.36-5.el8_0.1.i686.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.i686.rpm
dovecot-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.i686.rpm
dovecot-debugsource-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-devel-2.2.36-5.el8_0.1.i686.rpm
dovecot-devel-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.i686.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.i686.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.1.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.1.i686.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_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/

7. References:

https://access.redhat.com/security/cve/CVE-2019-11500
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

Copyright 2019 Red Hat, Inc.
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