Red Hat Security Advisory 2021-4837-02 ≈ Packet Storm

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Red Hat Security Advisory

Synopsis: Important: mailman:2.1 security update
Advisory ID: RHSA-2021:4837-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:4837
Issue date: 2021-11-24
CVE Names: CVE-2021-42096 CVE-2021-42097
====================================================================
1. Summary:

An update for the mailman:2.1 module 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:

Mailman is a program used to help manage e-mail discussion lists.

Security Fix(es):

* mailman: CSRF token bypass allows to perform CSRF attacks and account
takeover (CVE-2021-42097)

* mailman: CSRF token derived from admin password allows offline
brute-force attack (CVE-2021-42096)

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/):

2020568 - CVE-2021-42097 mailman: CSRF token bypass allows to perform CSRF attacks and account takeover
2020575 - CVE-2021-42096 mailman: CSRF token derived from admin password allows offline brute-force attack

6. Package List:

Red Hat Enterprise Linux AppStream EUS (v. 8.2):

Source:
mailman-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.src.rpm

aarch64:
mailman-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.aarch64.rpm
mailman-debuginfo-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.aarch64.rpm
mailman-debugsource-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.aarch64.rpm

ppc64le:
mailman-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.ppc64le.rpm
mailman-debuginfo-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.ppc64le.rpm
mailman-debugsource-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.ppc64le.rpm

s390x:
mailman-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.s390x.rpm
mailman-debuginfo-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.s390x.rpm
mailman-debugsource-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.s390x.rpm

x86_64:
mailman-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.x86_64.rpm
mailman-debuginfo-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.x86_64.rpm
mailman-debugsource-2.1.29-4.module+el8.2.0+13241+705a6aa4.3.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-2021-42096
https://access.redhat.com/security/cve/CVE-2021-42097
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <Cette adresse e-mail est protégée contre les robots spammeurs. Vous devez activer le JavaScript pour la visualiser.>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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