ssl/s3_clnt.c in OpenSSL 1.0.0 before 1.0.0t, 1.0.1 before 1.0.1p, and
1.0.2 before 1.0.2d, when used for a multi-threaded client, writes the
PSK identity hint to an incorrect data structure, which allows remote
servers to cause a denial of service (race condition and double free)
via a crafted ServerKeyExchange message.
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