pfSense workaround for Terrapin SSH Attack
Context
Potential SSH man in the middle attack; publicly disclosed Dec 18, 2023
Terrapin Attack
Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk
Terrapin attack - Wikipedia
Contributors to Wikimedia projects
Workaround
Rather than wait for a full release update from Netgate for pfSense/pfSense+
Enable the System Patches package
Development — System Patches Package | pfSense Documentation
Install/apply the patch. Reboot.