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AUSCERT External Security Bulletin Redistribution
ESB-2021.3790
mutt security, bug fix, and enhancement update
10 November 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: mutt
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Denial of Service -- Remote with User Interaction
Access Confidential Data -- Remote with User Interaction
Reduced Security -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3181 CVE-2020-28896
Reference: ASB-2021.0216
ASB-2021.0213
ESB-2021.3545
ESB-2021.3413
ESB-2021.0294
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:4181
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Red Hat Security Advisory
Synopsis: Moderate: mutt security, bug fix, and enhancement update
Advisory ID: RHSA-2021:4181-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4181
Issue date: 2021-11-09
CVE Names: CVE-2020-28896 CVE-2021-3181
=====================================================================
1. Summary:
An update for mutt is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact
of Moderate. 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:
Mutt is a low resource, highly configurable, text-based MIME e-mail client.
Mutt supports most e-mail storing formats, such as mbox and Maildir, as
well as most protocols, including POP3 and IMAP.
The following packages have been upgraded to a later upstream version: mutt
(2.0.7). (BZ#1912614)
Security Fix(es):
* mutt: Incorrect handling of invalid initial IMAP responses could lead to
an authentication attempt over unencrypted connection (CVE-2020-28896)
* mutt: Memory leak when parsing rfc822 group addresses (CVE-2021-3181)
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 8.5 Release Notes linked from 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/):
1890084 - RFE: Enable oauth2 support in mutt
1900826 - CVE-2020-28896 mutt: Incorrect handling of invalid initial IMAP responses could lead to an authentication attempt over unencrypted connection
1912614 - [RFE] Rebase mutt packages to mutt v2.x+
1920446 - CVE-2021-3181 mutt: Memory leak when parsing rfc822 group addresses
6. Package List:
Red Hat Enterprise Linux AppStream (v. 8):
Source:
mutt-2.0.7-1.el8.src.rpm
aarch64:
mutt-2.0.7-1.el8.aarch64.rpm
mutt-debuginfo-2.0.7-1.el8.aarch64.rpm
mutt-debugsource-2.0.7-1.el8.aarch64.rpm
ppc64le:
mutt-2.0.7-1.el8.ppc64le.rpm
mutt-debuginfo-2.0.7-1.el8.ppc64le.rpm
mutt-debugsource-2.0.7-1.el8.ppc64le.rpm
s390x:
mutt-2.0.7-1.el8.s390x.rpm
mutt-debuginfo-2.0.7-1.el8.s390x.rpm
mutt-debugsource-2.0.7-1.el8.s390x.rpm
x86_64:
mutt-2.0.7-1.el8.x86_64.rpm
mutt-debuginfo-2.0.7-1.el8.x86_64.rpm
mutt-debugsource-2.0.7-1.el8.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-2020-28896
https://access.redhat.com/security/cve/CVE-2021-3181
https://access.redhat.com/security/updates/classification/#moderate
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/
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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