OpenSSL DHE/ECDHE Key Exchange NULL Pointer Dereference Vulnerability

CVE-2017-3730 · MEDIUM Severity

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

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

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