OpenSSL Renegotiation Handshake Crash Vulnerability

CVE-2017-3733 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

During a renegotiation handshake if the Encrypt-Then-Mac extension is negotiated where it was not in the original handshake (or vice-versa) then this can cause OpenSSL 1.1.0 before 1.1.0e to crash (dependent on ciphersuite). Both clients and servers are affected.

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