Fix buffer overflow in pkcs5_pbkdf2_hmac_sha1
The underlying PKCS5_PBKDF2_HMAC_SHA1
can generate output of any size,
so a fixed on-stack buffer is insufficient.
Resolves https://bugzilla.redhat.com/show_bug.cgi?id=1270318 .
The underlying PKCS5_PBKDF2_HMAC_SHA1
can generate output of any size,
so a fixed on-stack buffer is insufficient.
Resolves https://bugzilla.redhat.com/show_bug.cgi?id=1270318 .