OpenSSL Hit By New High Severity Security Issue
Written by Michael Larabel in Linux Security on 16 February 2017 at 12:06 PM EST. 13 Comments
OpenSSL has been hit by another "high" severity security vulnerability.

While OpenSSL's code has improved in the three years since the Heartbleed vulnerability, new issues continue to come up for this important open-source project. From CVE-2017-3733:
Encrypt-Then-Mac renegotiation crash (CVE-2017-3733)

Severity: High

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 to crash (dependent on ciphersuite). Both clients and servers are affected.

OpenSSL 1.1.0 users should upgrade to 1.1.0e
The good news is that OpenSSL 1.0.2 isn't affected by this issue but this time around is just for OpenSSL 1.1 (pre-1.1.0e).
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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