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USN-5151-2: Mailman vulnerabilities

25 November 2021

Several security issues were fixed in Mailman.

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Releases

Packages

  • mailman - Web-based mailing list manager

Details

USN-5151-1 fixed several vulnerabilities in Mailman. This update provides
the corresponding update for Ubuntu 20.04 ESM.

Original advisory details:

It was discovered that Mailman incorrectly handled certain URL.
An attacker could possibly use this issue to execute arbitrary code.
(CVE-2021-43331)

It was discovered that Mailman incorrectly handled certain inputs.
An attacker could possibly use this issue to expose sensitive information.
(CVE-2021-43332)

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

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

Ubuntu 20.04

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

References

Related notices

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Further reading