Debian LTS: DLA-3049-1: mailman security update
Summary
CVE-2021-43331
A crafted URL to the Cgi/options.py user options page can execute
arbitrary JavaScript for XSS. (Closes: #1000367)
CVE-2021-43332
The CSRF token for the Cgi/admindb.py admindb page contains an
encrypted version of the list admin password. This could
potentially be cracked by a moderator via an offline brute-force
attack.
CVE-2021-44227
A list member or moderator can get a CSRF token and craft an admin
request (using that token) to set a new admin password or make
other changes.
For Debian 9 stretch, these problems have been fixed in version
1:2.1.23-1+deb9u8.
We recommend that you upgrade your mailman packages.
For the detailed security status of mailman please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/mailman
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS