Ubuntu Security Update USN-4348-1: Mailman vulnerabilities

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mailman vulnerabilities


A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 18.04 LTS
• Ubuntu 16.04 LTS

Summary


Several security issues were fixed in Mailman.

Software Description

• mailman - Web-based mailing list manager (legacy branch)

Details


It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this to issue execute arbitrary scripts or HTML. (CVE-2018-0618)

It was discovered that Mailman incorrectly handled certain inputs. An attacker could possibly use this issue to display arbitrary text on a web page. (CVE-2018-13796)

It was discovered that Mailman incorrectly handled certain files. An attacker could possibly use this issue to execute arbitrary code. (CVE-2020-12137)

Update instructions


The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.04 LTS
mailman - 1:2.1.26-1ubuntu0.1
Ubuntu 16.04 LTS
mailman - 1:2.1.20-1ubuntu0.4

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References

• CVE-2018-0618
• CVE-2018-13796
• CVE-2020-12137

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