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AUSCERT External Security Bulletin Redistribution
ESB-2021.0059
Security update for dovecot23
6 January 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: dovecot23
Publisher: SUSE
Operating System: SUSE
Impact/Access: Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-25275 CVE-2020-24386 CVE-2020-12674
CVE-2020-12673 CVE-2020-12100
Reference: ESB-2021.0040
ESB-2020.3120
ESB-2020.3032
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20210028-1
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SUSE Security Update: Security update for dovecot23
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0028-1
Rating: important
References: #1174920 #1174922 #1174923 #1180405 #1180406
Cross-References: CVE-2020-12100 CVE-2020-12673 CVE-2020-12674 CVE-2020-24386
CVE-2020-25275
Affected Products:
SUSE Linux Enterprise Module for Server Applications 15-SP2
______________________________________________________________________________
An update that fixes 5 vulnerabilities is now available.
Description:
This update for dovecot23 fixes the following issues:
Security issues fixed:
o CVE-2020-12100: Fixed a resource exhaustion caused by deeply nested MIME
parts (bsc#1174920).
o CVE-2020-12673: Fixed an improper implementation of NTLM that did not check
the message buffer size (bsc#1174922).
o CVE-2020-12674: Fixed an improper implementation of the RPA mechanism (bsc#
1174923).
o CVE-2020-24386: Fixed an issue with IMAP hibernation that allowed users to
access other users' emails (bsc#1180405).
o CVE-2020-25275: Fixed a crash when the 10000th MIME part was message/rfc822
(bsc#1180406).
Non-security issues fixed:
o Pigeonhole was updated to version 0.5.11.
o Dovecot was updated to version 2.3.11.3.
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Module for Server Applications 15-SP2:
zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP2-2021-28=1
Package List:
o SUSE Linux Enterprise Module for Server Applications 15-SP2 (aarch64
ppc64le s390x x86_64):
dovecot23-2.3.11.3-17.5.1
dovecot23-backend-mysql-2.3.11.3-17.5.1
dovecot23-backend-mysql-debuginfo-2.3.11.3-17.5.1
dovecot23-backend-pgsql-2.3.11.3-17.5.1
dovecot23-backend-pgsql-debuginfo-2.3.11.3-17.5.1
dovecot23-backend-sqlite-2.3.11.3-17.5.1
dovecot23-backend-sqlite-debuginfo-2.3.11.3-17.5.1
dovecot23-debuginfo-2.3.11.3-17.5.1
dovecot23-debugsource-2.3.11.3-17.5.1
dovecot23-devel-2.3.11.3-17.5.1
dovecot23-fts-2.3.11.3-17.5.1
dovecot23-fts-debuginfo-2.3.11.3-17.5.1
dovecot23-fts-lucene-2.3.11.3-17.5.1
dovecot23-fts-lucene-debuginfo-2.3.11.3-17.5.1
dovecot23-fts-solr-2.3.11.3-17.5.1
dovecot23-fts-solr-debuginfo-2.3.11.3-17.5.1
dovecot23-fts-squat-2.3.11.3-17.5.1
dovecot23-fts-squat-debuginfo-2.3.11.3-17.5.1
References:
o https://www.suse.com/security/cve/CVE-2020-12100.html
o https://www.suse.com/security/cve/CVE-2020-12673.html
o https://www.suse.com/security/cve/CVE-2020-12674.html
o https://www.suse.com/security/cve/CVE-2020-24386.html
o https://www.suse.com/security/cve/CVE-2020-25275.html
o https://bugzilla.suse.com/1174920
o https://bugzilla.suse.com/1174922
o https://bugzilla.suse.com/1174923
o https://bugzilla.suse.com/1180405
o https://bugzilla.suse.com/1180406
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