USN-5121-1: Mailman vulnerabilities

22 October 2021

Several security issues were fixed in Mailman.

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Releases

Packages

  • mailman - Web-based mailing list manager

Details

Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman
did not properly associate cross-site request forgery (CSRF) tokens
to specific accounts. A remote attacker could use this to perform a
CSRF attack to gain access to another account. (CVE-2021-42097)

Andre Protas, Richard Cloke, and Andy Nuttall discovered that Mailman's
cross-site request forgery (CSRF) tokens for the options page are
derived from the admin password. A remote attacker could possibly use
this to assist in performing a brute force attack against the admin
password. (CVE-2021-42096)

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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.

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Update instructions

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

Ubuntu 18.04
Ubuntu 16.04

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

References

Related notices

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