A quick look through the release notes: https://www.libressl.org/releases.html seems to indicate that they've only been affected by six CVEs since October 2015.
I haven't followed LibreSSL recently, but previously many of the CVEs that affected OpenSSL are for features that LibreSSL ripped out.
I haven't followed LibreSSL recently, but previously many of the CVEs that affected OpenSSL are for features that LibreSSL ripped out.