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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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