> If you’re using version 1.1.1, this vulnerability doesn’t affect you
AFAIK, LibreSSL forked even before that - when OpenSSL was version 1.0 or 0.9 even. So likely not affected - unless a similar issue appeared there after the fork.
In the previous OpenSSH vs OpenSSL 3 bug it went like this:
> The issue has been identified in OpenSSL version 3.0.4, which was released on June 21, 2022, and impacts x64 systems with the AVX-512 instruction set. OpenSSL 1.1.1 as well as OpenSSL forks BoringSSL and LibreSSL are not affected. (https://thehackernews.com/2022/06/openssh-to-release-securit...)
Also, an interesting talk: LibreSSL: The first 30 days, and what the Future Holds from BSDCan: <https://www.youtube.com/watch?v=oM6S7FEUfkU>