[Mailman-Announce] Mailman 2.1 security release

A couple of vulnerabilities have recently been reported. Thanks to Andre Protas, Richard Cloke and Andy Nuttall of Apple for reporting these and helping with the development of a fix.

CVE-2021-42096 could allow a list member to discover the list admin password.

CVE-2021-42097 could allow a list member to create a successful CSRF attack against another list member enabling takeover of the members account.

These attacks can't be carried out by non-members so may not be of concern for sites with only trusted list members.

In any case, I am planning to make a 2.1.35 release and to post a patch for those who don't want to upgrade to address these issues. This is scheduled for Tuesday, October 19.