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Red Hat Enterprise Linux 7 RHSA-2020-1062-01 Moderate: Dovecot Bugs Fix

red hat
Calendar Grey March 31, 2020
Dist Redhat Esm H88
Canonical releases a critical security patch for postfix rectifying authentication flaws and directory traversal vulnerabilities.
An update for dovecot is now available for Red Hat Enterprise Linux 7

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: Improper certificate validation (CVE-2019-3814)
* dovecot: Buffer overflow in indexer-worker process results in privilege escalation (CVE-2019-7524)
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.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat update buffer overflow dovecot certificate validation

References

https://access.redhat.com/security/cve/CVE-2019-3814 https://access.redhat.com/security/cve/CVE-2019-7524 https://access.redhat.com/security/updates/classification#moderate https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/7.8_release_notes/index

Package List

Red Hat Enterprise Linux Server (v. 7):
Source: dovecot-2.2.36-6.el7.src.rpm
ppc64: dovecot-2.2.36-6.el7.ppc.rpm dovecot-2.2.36-6.el7.ppc64.rpm dovecot-debuginfo-2.2.36-6.el7.ppc.rpm dovecot-debuginfo-2.2.36-6.el7.ppc64.rpm dovecot-mysql-2.2.36-6.el7.ppc64.rpm dovecot-pgsql-2.2.36-6.el7.ppc64.rpm dovecot-pigeonhole-2.2.36-6.el7.ppc64.rpm
ppc64le: dovecot-2.2.36-6.el7.ppc64le.rpm dovecot-debuginfo-2.2.36-6.el7.ppc64le.rpm dovecot-mysql-2.2.36-6.el7.ppc64le.rpm dovecot-pgsql-2.2.36-6.el7.ppc64le.rpm dovecot-pigeonhole-2.2.36-6.el7.ppc64le.rpm
s390x: dovecot-2.2.36-6.el7.s390.rpm dovecot-2.2.36-6.el7.s390x.rpm dovecot-debuginfo-2.2.36-6.el7.s390.rpm dovecot-debuginfo-2.2.36-6.el7.s390x.rpm dovecot-mysql-2.2.36-6.el7.s390x.rpm dovecot-pgsql-2.2.36-6.el7.s390x.rpm dovecot-pigeonhole-2.2.36-6.el7.s390x.rpm
x86_64: dovecot-2.2.36-6.el7.i686.rpm dovecot-2.2.36-6.el7.x86_64.rpm dovecot-debuginfo-2.2.36-6.el7.i686.rpm dovecot-debuginfo-2.2.36-6.el7.x86_64.rpm dovecot-mysql-2.2.36-6.el7.x86_64.rpm dovecot-pgsql-2.2.36-6.el7.x86_64.rpm dovecot-pigeonhole-2.2.36-6.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: dovecot-debuginfo-2.2.36-6.el7.ppc64.rpm dovecot-devel-2.2.36-6.el7.ppc64.rpm
ppc64le: dovecot-debuginfo-2.2.36-6.el7.ppc64le.rpm

Read the Full Advisory


Advisory ID: RHSA-2020:1062-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1062
Issue date: 2020-03-31

Topic

An update for dovecot is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate Red Hat update buffer overflow dovecot certificate validation

Relevant Releases Architectures

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1570283 - Dovecot should use portrelease to avoid port conflicts with NFSv4 mounts

1673415 - CVE-2019-3814 dovecot: Improper certificate validation

1696152 - CVE-2019-7524 dovecot: Buffer overflow in indexer-worker process results in privilege escalation

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