Alerts This Week
Warning Icon 1 924
Alerts This Week
Warning Icon 1 924

Red Hat: RHSA-2021:1887-01 Moderate Dovecot Security Update

red hat
Calendar Grey May 18, 2021
Dist Redhat Esm H88
A new release for Dovecot on Red Hat Enterprise Linux provides security enhancements and bug resolutions classified as moderate.
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: IMAP hibernation function allows mail access (CVE-2020-24386)
* dovecot: Denial of service via mail MIME parsing (CVE-2020-25275)
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 8.4 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux moderate impact IMAP server Dovecot fix

References

https://access.redhat.com/security/cve/CVE-2020-24386 https://access.redhat.com/security/cve/CVE-2020-25275 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: dovecot-2.3.8-9.el8.src.rpm
aarch64: dovecot-2.3.8-9.el8.aarch64.rpm dovecot-debuginfo-2.3.8-9.el8.aarch64.rpm dovecot-debugsource-2.3.8-9.el8.aarch64.rpm dovecot-mysql-2.3.8-9.el8.aarch64.rpm dovecot-mysql-debuginfo-2.3.8-9.el8.aarch64.rpm dovecot-pgsql-2.3.8-9.el8.aarch64.rpm dovecot-pgsql-debuginfo-2.3.8-9.el8.aarch64.rpm dovecot-pigeonhole-2.3.8-9.el8.aarch64.rpm dovecot-pigeonhole-debuginfo-2.3.8-9.el8.aarch64.rpm
ppc64le: dovecot-2.3.8-9.el8.ppc64le.rpm dovecot-debuginfo-2.3.8-9.el8.ppc64le.rpm dovecot-debugsource-2.3.8-9.el8.ppc64le.rpm dovecot-mysql-2.3.8-9.el8.ppc64le.rpm dovecot-mysql-debuginfo-2.3.8-9.el8.ppc64le.rpm dovecot-pgsql-2.3.8-9.el8.ppc64le.rpm dovecot-pgsql-debuginfo-2.3.8-9.el8.ppc64le.rpm dovecot-pigeonhole-2.3.8-9.el8.ppc64le.rpm dovecot-pigeonhole-debuginfo-2.3.8-9.el8.ppc64le.rpm
s390x: dovecot-2.3.8-9.el8.s390x.rpm dovecot-debuginfo-2.3.8-9.el8.s390x.rpm dovecot-debugsource-2.3.8-9.el8.s390x.rpm dovecot-mysql-2.3.8-9.el8.s390x.rpm dovecot-mysql-debuginfo-2.3.8-9.el8.s390x.rpm dovecot-pgsql-2.3.8-9.el8.s390x.rpm dovecot-pgsql-debuginfo-2.3.8-9.el8.s390x.rpm dovecot-pigeonhole-2.3.8-9.el8.s390x.rpm dovecot-pigeonhole-debuginfo-2.3.8-9.el8.s390x.rpm
x86_64: dovecot-2.3.8-9.el8.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2021:1887-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:1887
Issue date: 2021-05-18

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 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 security update Red Hat Enterprise Linux moderate impact IMAP server Dovecot fix

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

1805947 - Creating tmp files for systemd on behalf of dovecot references legacy directory /var/run/ instead of /run

1888111 - imap crashes in assertion "(ctx->nested_parts_count > 0)" regularly

1894418 - imap crashes in libdovecot-storage with assert "(block_count == 0 || block_idx+1 == block_count)"

1912455 - CVE-2020-24386 dovecot: IMAP hibernation function allows mail access

1912460 - CVE-2020-25275 dovecot: Denial of service via mail MIME parsing

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here