"openssl version -v" will tell you the version number. You definitely won't see the patched (1.0.1g) version as it was just released on April 7 2014.
So it comes down to how OpenSSL was implemented in LMS 3.2 (or any other older product). It may actually be such an old version (pre-1.0.1 ca. March 2012) that it didn't support the heartbeat function and thus not have the vulnerability.
The Cisco Security Advisory for the OpenSSL Heartbeat Extension vulnerability will be updated in coming days to further list the known affected (and unaffected) products. Right now, it's a pretty sparse list.