RHSA-2020:3735 — Security Advisory
Red Hat Security Advisory: dovecot security update
Severity
ImportantRed Hat Product Security
Products
Official CSAF product identity
Published · September 14, 2020
Updated · November 22, 2025
Topic
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.
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)
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dovecot: Out of bound reads in dovecot NTLM implementation (CVE-2020-12673)
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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.