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Red Hat Enterprise Linux 8: RHSA-2020-3713-01 Important Dovecot Update

red hat
Calendar Grey September 10, 2020
Dist Redhat Esm H88
Oracle unveiled a significant patch for MySQL in Solaris 11 targeting vulnerabilities and potential system overloads.
An update for dovecot is now available for Red Hat Enterprise Linux 8

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

Summary

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.

Topics%20covered

Topics Covered

security advisory red hat important dos threat dovecot out of bounds resource exhaustion

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

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: dovecot-2.3.8-2.el8_2.2.src.rpm
aarch64: dovecot-2.3.8-2.el8_2.2.aarch64.rpm dovecot-debuginfo-2.3.8-2.el8_2.2.aarch64.rpm dovecot-debugsource-2.3.8-2.el8_2.2.aarch64.rpm dovecot-mysql-2.3.8-2.el8_2.2.aarch64.rpm dovecot-mysql-debuginfo-2.3.8-2.el8_2.2.aarch64.rpm dovecot-pgsql-2.3.8-2.el8_2.2.aarch64.rpm dovecot-pgsql-debuginfo-2.3.8-2.el8_2.2.aarch64.rpm dovecot-pigeonhole-2.3.8-2.el8_2.2.aarch64.rpm dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.2.aarch64.rpm
ppc64le: dovecot-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-debuginfo-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-debugsource-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-mysql-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-mysql-debuginfo-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-pgsql-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-pgsql-debuginfo-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-pigeonhole-2.3.8-2.el8_2.2.ppc64le.rpm dovecot-pigeonhole-debuginfo-2.3.8-2.el8_2.2.ppc64le.rpm
s390x: dovecot-2.3.8-2.el8_2.2.s390x.rpm dovecot-debuginfo-2.3.8-2.el8_2.2.s390x.rpm dovecot-debugsource-2.3.8-2.el8_2.2.s390x.rpm dovecot-mysql-2.3.8-2.el8_2.2.s390x.rpm dovecot-mysql-debuginfo-2.3.8-2.el8_2.2.s390x.rpm dovecot-pgsql-2.3.8-2.el8_2.2.s390x.rpm dovecot-pgsql-debuginfo-2.3.8-2.el8_2.2.s390x.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3713-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3713
Issue date: 2020-09-10

Topic

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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory red hat important dos threat dovecot out of bounds resource exhaustion

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

Bugs Fixed

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

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