Debian Bullseye DSA-5238-1 Moderate ThunderBird DoS Fix

Multiple security issues were discovered in Thunderbird, which could
result in denial of service or the execution of arbitrary code.

For the stable distribution (bullseye), these problems have been fixed in
version 1:102.3.0-1~deb11u1. Debian follows the Thunderbird upstream
releases. Support for the 91.x series has ended, so starting with this
update we're now following the 102.x series.

We recommend that you upgrade your thunderbird packages.

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

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/