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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2020.3152
dovecot security update
15 September 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: dovecot
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 8
Red Hat Enterprise Linux WS/Desktop 8
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-12674 CVE-2020-12673 CVE-2020-12100
Reference: ESB-2020.3120
ESB-2020.3032
ESB-2020.2821
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:3735
https://access.redhat.com/errata/RHSA-2020:3736
Comment: This bulletin contains two (2) Red Hat security advisories.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: dovecot security update
Advisory ID: RHSA-2020:3735-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3735
Issue date: 2020-09-14
CVE Names: CVE-2020-12100 CVE-2020-12673 CVE-2020-12674
=====================================================================
1. Summary:
An update for dovecot is now available for Red Hat Enterprise Linux 8.0
Update Services for SAP Solutions.
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 Enterprise Linux AppStream E4S (v. 8.0) - 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: Resource exhaustion via deeply nested MIME parts
(CVE-2020-12100)
* dovecot: Out of bound reads in dovecot NTLM implementation
(CVE-2020-12673)
* dovecot: Crash due to assert in RPA implementation (CVE-2020-12674)
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/):
1866309 - CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts
1866313 - CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation
1866317 - CVE-2020-12674 dovecot: Crash due to assert in RPA implementation
6. Package List:
Red Hat Enterprise Linux AppStream E4S (v. 8.0):
Source:
dovecot-2.2.36-5.el8_0.3.src.rpm
aarch64:
dovecot-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-debuginfo-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-debugsource-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-mysql-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-pgsql-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.3.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.3.aarch64.rpm
ppc64le:
dovecot-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-debuginfo-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-debugsource-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-mysql-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-pgsql-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.3.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.3.ppc64le.rpm
s390x:
dovecot-2.2.36-5.el8_0.3.s390x.rpm
dovecot-debuginfo-2.2.36-5.el8_0.3.s390x.rpm
dovecot-debugsource-2.2.36-5.el8_0.3.s390x.rpm
dovecot-mysql-2.2.36-5.el8_0.3.s390x.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.3.s390x.rpm
dovecot-pgsql-2.2.36-5.el8_0.3.s390x.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.3.s390x.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.3.s390x.rpm
x86_64:
dovecot-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-debuginfo-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-debugsource-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-mysql-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-mysql-debuginfo-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-pgsql-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-pgsql-debuginfo-2.2.36-5.el8_0.3.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-5.el8_0.3.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-2020-12100
https://access.redhat.com/security/cve/CVE-2020-12673
https://access.redhat.com/security/cve/CVE-2020-12674
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: dovecot security update
Advisory ID: RHSA-2020:3736-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3736
Issue date: 2020-09-14
CVE Names: CVE-2020-12100 CVE-2020-12673 CVE-2020-12674
=====================================================================
1. Summary:
An update for dovecot is now available for Red Hat Enterprise Linux 8.1
Extended Update Support.
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 EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux AppStream EUS (v. 8.1) - 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: Resource exhaustion via deeply nested MIME parts
(CVE-2020-12100)
* dovecot: Out of bound reads in dovecot NTLM implementation
(CVE-2020-12673)
* dovecot: Crash due to assert in RPA implementation (CVE-2020-12674)
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/):
1866309 - CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts
1866313 - CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation
1866317 - CVE-2020-12674 dovecot: Crash due to assert in RPA implementation
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v. 8.1):
Source:
dovecot-2.2.36-10.el8_1.2.src.rpm
aarch64:
dovecot-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-mysql-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pgsql-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pigeonhole-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
ppc64le:
dovecot-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-mysql-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pgsql-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pigeonhole-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
s390x:
dovecot-2.2.36-10.el8_1.2.s390x.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.s390x.rpm
dovecot-mysql-2.2.36-10.el8_1.2.s390x.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pgsql-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pigeonhole-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
x86_64:
dovecot-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-mysql-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pgsql-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pigeonhole-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
Red Hat CodeReady Linux Builder EUS (v. 8.1):
aarch64:
dovecot-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-devel-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.aarch64.rpm
ppc64le:
dovecot-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-devel-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.ppc64le.rpm
s390x:
dovecot-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.s390x.rpm
dovecot-devel-2.2.36-10.el8_1.2.s390x.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.s390x.rpm
x86_64:
dovecot-2.2.36-10.el8_1.2.i686.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.i686.rpm
dovecot-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.i686.rpm
dovecot-debugsource-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-devel-2.2.36-10.el8_1.2.i686.rpm
dovecot-devel-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.i686.rpm
dovecot-mysql-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.i686.rpm
dovecot-pgsql-debuginfo-2.2.36-10.el8_1.2.x86_64.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.i686.rpm
dovecot-pigeonhole-debuginfo-2.2.36-10.el8_1.2.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-2020-12100
https://access.redhat.com/security/cve/CVE-2020-12673
https://access.redhat.com/security/cve/CVE-2020-12674
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is . More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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You have received this e-mail bulletin as a result of your organisation's
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maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
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NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
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which may arise from following or acting on information or advice contained in
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NOTE: This is only the original release of the security bulletin. It may
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Previous advisories and external security bulletins can be retrieved from:
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===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
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