Debian LTS: DLA-3915-1: libreoffice Security Advisory Updates

Prior to this fix, in the case of digitally signed zip files,
an attacker could construct a document which, when repaired,
reported a signature status not valid for the recovered file.

Previously if verification failed the user could choose
to ignore the failure and enable the macros anyway.

Repair document mode has to be inherently tolerant,
so now in fixed versions all signatures are implied to
be invalid in recovery mode.

For Debian 11 bullseye, this problem has been fixed in version
1:7.0.4-4+deb11u11.

We recommend that you upgrade your libreoffice packages.

For the detailed security status of libreoffice please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/libreoffice

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