Debian LTS: DLA-2847-1: mediawiki security update
Summary
For additional information please refer to
https://www.mediawiki.org/wiki/2021-12_security_release/FAQ
For Debian 9 stretch, this problem has been fixed in version
1:1.27.7-1+deb9u11.
We recommend that you upgrade your mediawiki packages.
For the detailed security status of mediawiki please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/mediawiki
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