Comment Re:Compiler option (Score 4, Interesting) 144
Yes it did. You were not vulnerable if you have built OpenSSL with the feature disabled.
Except that OpenSSL actually didn't run with the "feature disabled" (internal freelist-based memory allocator) due to uninitialized memory bugs in OpenSSL that required newly allocated blocks of certain types to have memory set in them from previously freed blocks. See details here.