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Red Hat: RHSA-2021-3546-01 Critical: cyrus-imapd Denial of Service

red hat
Calendar Grey September 15, 2021
Dist Redhat Esm H88
Canonical releases an essential patch for openldap to mitigate potential vulnerabilities that could lead to service interruptions for business clients.
An update for cyrus-imapd is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

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

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.

Topics%20covered

Topics Covered

security advisory denial of service security update doS cyrus-imapd red hat enterprise important patch

References

https://access.redhat.com/security/cve/CVE-2021-33582 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.1):
Source: cyrus-imapd-3.0.7-16.el8_1.1.src.rpm
aarch64: cyrus-imapd-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-debuginfo-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-debugsource-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-utils-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-utils-debuginfo-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-vzic-3.0.7-16.el8_1.1.aarch64.rpm cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_1.1.aarch64.rpm
ppc64le: cyrus-imapd-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-debuginfo-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-debugsource-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-utils-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-utils-debuginfo-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-vzic-3.0.7-16.el8_1.1.ppc64le.rpm cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_1.1.ppc64le.rpm
s390x: cyrus-imapd-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-debuginfo-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-debugsource-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-utils-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-utils-debuginfo-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-vzic-3.0.7-16.el8_1.1.s390x.rpm cyrus-imapd-vzic-debuginfo-3.0.7-16.el8_1.1.s390x.rpm
x86_64: cyrus-imapd-3.0.7-16.el8_1.1.i686.rpm cyrus-imapd-3.0.7-16.el8_1.1.x86_64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2021:3546-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:3546
Issue date: 2021-09-15

Topic

An update for cyrus-imapd is now available for Red Hat Enterprise Linux 8.1Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory denial of service security update doS cyrus-imapd red hat enterprise important patch

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1993232 - CVE-2021-33582 cyrus-imapd: Denial of service via string hashing algorithm collisions

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