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Security expert Georgi Guninski has pointed out a security issue in the 1.0 branch of OpenSSL that potentially allows SSL servers to compromise clients. Apparently the hole can be exploited simply by sending a specially crafted certificate to the client, causing deallocated memory to be accessed in the ssl3_get_key_exchange function (in ssl\s3_clnt.c). While this usually only causes an application to crash, it can potentially also be exploited to execute injected code.
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Vulnerability in OpenSSL 1.0.x
