Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.3066
cyrus-imapd security update
14 September 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: cyrus-imapd
Publisher: Red Hat
Operating System: Red Hat
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-33582
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:3493
https://access.redhat.com/errata/RHSA-2021:3492
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running cyrus-imapd check for an updated version of the software for
their operating system.
This bulletin contains two (2) Red Hat security advisories.
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=====================================================================
Red Hat Security Advisory
Synopsis: Important: cyrus-imapd security update
Advisory ID: RHSA-2021:3493-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3493
Issue date: 2021-09-13
CVE Names: CVE-2021-33582
=====================================================================
1. Summary:
An update for cyrus-imapd is now available for Red Hat Enterprise Linux 8.2
Extended Update Support.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64
3. Description:
The Cyrus IMAP server provides access to personal mail, system-wide
bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP,
NNTP, CalDAV and CardDAV protocols.
Security Fix(es):
* cyrus-imapd: Denial of service via string hashing algorithm collisions
(CVE-2021-33582)
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1993232 - CVE-2021-33582 cyrus-imapd: Denial of service via string hashing algorithm collisions
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v. 8.2):
Source:
cyrus-imapd-3.0.7-16.el8_2.1.src.rpm
aarch64:
cyrus-imapd-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-debuginfo-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-debugsource-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-utils-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-utils-debuginfo-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-vzic-3.0.7-16.el8_2.1.aarch64.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_2.1.aarch64.rpm
ppc64le:
cyrus-imapd-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-debuginfo-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-debugsource-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-utils-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-utils-debuginfo-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-vzic-3.0.7-16.el8_2.1.ppc64le.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_2.1.ppc64le.rpm
s390x:
cyrus-imapd-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-debuginfo-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-debugsource-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-utils-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-utils-debuginfo-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-vzic-3.0.7-16.el8_2.1.s390x.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_2.1.s390x.rpm
x86_64:
cyrus-imapd-3.0.7-16.el8_2.1.i686.rpm
cyrus-imapd-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-debuginfo-3.0.7-16.el8_2.1.i686.rpm
cyrus-imapd-debuginfo-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-debugsource-3.0.7-16.el8_2.1.i686.rpm
cyrus-imapd-debugsource-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-utils-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-utils-debuginfo-3.0.7-16.el8_2.1.i686.rpm
cyrus-imapd-utils-debuginfo-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-vzic-3.0.7-16.el8_2.1.x86_64.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_2.1.i686.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_2.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-33582
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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- ---------------------------------------------------------------------------------------------
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Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: cyrus-imapd security update
Advisory ID: RHSA-2021:3492-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3492
Issue date: 2021-09-13
CVE Names: CVE-2021-33582
=====================================================================
1. Summary:
An update for cyrus-imapd is now available for Red Hat Enterprise Linux 8.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
3. Description:
The Cyrus IMAP server provides access to personal mail, system-wide
bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP,
NNTP, CalDAV and CardDAV protocols.
Security Fix(es):
* cyrus-imapd: Denial of service via string hashing algorithm collisions
(CVE-2021-33582)
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.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1993232 - CVE-2021-33582 cyrus-imapd: Denial of service via string hashing algorithm collisions
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
cyrus-imapd-3.0.7-20.el8_4.1.src.rpm
aarch64:
cyrus-imapd-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-debuginfo-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-debugsource-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-utils-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-utils-debuginfo-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-vzic-3.0.7-20.el8_4.1.aarch64.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-20.el8_4.1.aarch64.rpm
ppc64le:
cyrus-imapd-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-debuginfo-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-debugsource-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-utils-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-utils-debuginfo-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-vzic-3.0.7-20.el8_4.1.ppc64le.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-20.el8_4.1.ppc64le.rpm
s390x:
cyrus-imapd-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-debuginfo-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-debugsource-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-utils-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-utils-debuginfo-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-vzic-3.0.7-20.el8_4.1.s390x.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-20.el8_4.1.s390x.rpm
x86_64:
cyrus-imapd-3.0.7-20.el8_4.1.i686.rpm
cyrus-imapd-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-debuginfo-3.0.7-20.el8_4.1.i686.rpm
cyrus-imapd-debuginfo-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-debugsource-3.0.7-20.el8_4.1.i686.rpm
cyrus-imapd-debugsource-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-utils-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-utils-debuginfo-3.0.7-20.el8_4.1.i686.rpm
cyrus-imapd-utils-debuginfo-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-vzic-3.0.7-20.el8_4.1.x86_64.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-20.el8_4.1.i686.rpm
cyrus-imapd-vzic-debuginfo-3.0.7-20.el8_4.1.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2021-33582
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc.
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