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Red Hat Enterprise Linux 8.2 RHSA-2021:4837 Important: Mailman CSRF Fix

red hat
Calendar Grey November 24, 2021
Dist Redhat Esm H88
An essential security patch for mailman:2.1 within Red Hat Enterprise Linux counteracts CSRF vulnerabilities and enhances system integrity.
An update for the mailman:2.1 module is now available for Red Hat Enterprise Linux 8.2 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

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.

Topics%20covered

Topics Covered

security advisory red hat important security impact mailman csrf module update

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

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


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

An update for the mailman:2.1 module is now available for Red HatEnterprise Linux 8.2 Extended 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 red hat important security impact mailman csrf module update

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream EUS (v. 8.2) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

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

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