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Red Hat Enterprise Linux 8: RHSA-2020-4667 Moderate: Mailman XSS Issue

red hat
Calendar Grey November 3, 2020
Dist Redhat Esm H88
Mailman 2.1 patch for enhanced security on Red Hat Enterprise Linux 8 resolves XSS vulnerability in archive listings.
An update for the mailman:2.1 module is now available for Red Hat Enterprise Linux 8

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: XSS via file attachments in list archives (CVE-2020-12137)
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 8.3 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory moderate red hat security fix xss mailman

References

https://access.redhat.com/security/cve/CVE-2020-12137 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.3_release_notes/

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: mailman-2.1.29-10.module+el8.3.0+6860+8e47d84b.src.rpm
aarch64: mailman-2.1.29-10.module+el8.3.0+6860+8e47d84b.aarch64.rpm mailman-debuginfo-2.1.29-10.module+el8.3.0+6860+8e47d84b.aarch64.rpm mailman-debugsource-2.1.29-10.module+el8.3.0+6860+8e47d84b.aarch64.rpm
ppc64le: mailman-2.1.29-10.module+el8.3.0+6860+8e47d84b.ppc64le.rpm mailman-debuginfo-2.1.29-10.module+el8.3.0+6860+8e47d84b.ppc64le.rpm mailman-debugsource-2.1.29-10.module+el8.3.0+6860+8e47d84b.ppc64le.rpm
s390x: mailman-2.1.29-10.module+el8.3.0+6860+8e47d84b.s390x.rpm mailman-debuginfo-2.1.29-10.module+el8.3.0+6860+8e47d84b.s390x.rpm mailman-debugsource-2.1.29-10.module+el8.3.0+6860+8e47d84b.s390x.rpm
x86_64: mailman-2.1.29-10.module+el8.3.0+6860+8e47d84b.x86_64.rpm mailman-debuginfo-2.1.29-10.module+el8.3.0+6860+8e47d84b.x86_64.rpm mailman-debugsource-2.1.29-10.module+el8.3.0+6860+8e47d84b.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/


Advisory ID: RHSA-2020:4667-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4667
Issue date: 2020-11-03

Topic

An update for the mailman:2.1 module is now available for Red HatEnterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate red hat security fix xss mailman

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64

Bugs Fixed

1683399 - /etc/mailman has wrong permissions 0755 instead of 2775

1780100 - Module stream mailman:2.1 does not have correct module.md file

1805954 - Creating tmp files for systemd on behalf of mailman references legacy directory /var/run/ instead of /run

1830007 - CVE-2020-12137 mailman: XSS via file attachments in list archives

1837218 - Processing bounces from mailing lists causes oom crash of BounceRunner

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