Dear all,
I think this is an issue with the Hardware token and not with the
userland libraries and tools.
More specifically, I am able to reproduce this bug with
Device type: YubiKey 4
Firmware version: 4.3.7
on a Gentoo system, whereas "reproduce.sh" succeeds with
a newer Yubikey:
Device type: YubiKey 5 NFC
Firmware version: 5.4.3
Software and versions:
openssl-1.1.1o
yubico-piv-tool-2.3.0
Best,
Matthias