RHSA-2020:1054 - Security Advisory

Topic

An update for mailman is now available for Red Hat Enterprise Linux 7.

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.

Description

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

Security Fix(es):

• mailman: Cross-site scripting vulnerability allows malicious listowners to inject scripts into listinfo pages (CVE-2018-0618)
• mailman: Mishandled URLs in Utils.py:GetPathPieces() allows attackers to display arbitrary text on trusted sites (CVE-2018-13796)

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 7.8 Release Notes linked from the References section.

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

Affected Products

• Red Hat Enterprise Linux Server 7 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
• Red Hat Enterprise Linux Workstation 7 x86_64
• Red Hat Enterprise Linux for IBM z Systems 7 s390x
• Red Hat Enterprise Linux for Power, big endian 7 ppc64
• Red Hat Enterprise Linux for Power, little endian 7 ppc64le
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 7 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, big endian 7 ppc64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

• BZ - 1596458 - CVE-2018-0618 mailman: Cross-site scripting vulnerability allows malicious listowners to inject scripts into listinfo pages
• BZ - 1609090 - CVE-2018-13796 mailman: Mishandled URLs in Utils.py:GetPathPieces() allows attackers to display arbitrary text on trusted sites

CVEs

• CVE-2018-0618
• CVE-2018-13796

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index