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Red Hat Security Advisory 2020-2901-01

Red Hat Security Advisory 2020-2901-01
Posted Jul 13, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-2901-01 - 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. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, imap
systems | linux, redhat, unix
advisories | CVE-2020-10957
SHA-256 | 5388b840d07a416917d8e654fc7d471e63221776509c441b201c96ca12a3a5ef

Red Hat Security Advisory 2020-2901-01

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

Synopsis: Important: dovecot security update
Advisory ID: RHSA-2020:2901-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2901
Issue date: 2020-07-13
CVE Names: CVE-2020-10957
====================================================================
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: malformed NOOP commands leads to DoS (CVE-2020-10957)

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/):

1834317 - CVE-2020-10957 dovecot: malformed NOOP commands leads to DoS

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
dovecot-2.3.8-2.el8_2.1.src.rpm

aarch64:
dovecot-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-mysql-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pgsql-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pigeonhole-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm

ppc64le:
dovecot-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-mysql-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pgsql-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pigeonhole-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm

s390x:
dovecot-2.3.8-2.el8_2.1.s390x.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.s390x.rpm
dovecot-mysql-2.3.8-2.el8_2.1.s390x.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pgsql-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pigeonhole-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.s390x.rpm

x86_64:
dovecot-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-mysql-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pgsql-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pigeonhole-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm

Red Hat CodeReady Linux Builder (v. 8):

aarch64:
dovecot-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-devel-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.aarch64.rpm

ppc64le:
dovecot-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-devel-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.ppc64le.rpm

s390x:
dovecot-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.s390x.rpm
dovecot-devel-2.3.8-2.el8_2.1.s390x.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.s390x.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.s390x.rpm

x86_64:
dovecot-2.3.8-2.el8_2.1.i686.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.i686.rpm
dovecot-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.i686.rpm
dovecot-debugsource-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-devel-2.3.8-2.el8_2.1.i686.rpm
dovecot-devel-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.i686.rpm
dovecot-mysql-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.i686.rpm
dovecot-pgsql-debuginfo-2.3.8-2.el8_2.1.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.i686.rpm
dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.1.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-2020-10957
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 2020 Red Hat, Inc.
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