SeaCat Technology and the Latest OpenSSL Update (1.1.0e)

February 21, 2017

OpenSSL released a new version on February 16, 2017. The new version fixed one high-severity issue regarding renegotiation of the Encrypt-then-MAC (EtM) extension, an approach to authenticated encryption. The vulnerability is identified as CVE-2017-3733. Several, not yet known, cipher suites are affected; therefore disabling affected cipher suites can not be used as a workaround.

TeskaLabs’ SeaCat technology uses the 1.0.2 series for its cryptography library, so this update does not affect our technology in any way.


Your systems and applications are affected if they use OpenSSL 1.1.0 series. EtM is the strongest approach to authenticated encryption. We strongly recommend you to update to the latest version.

Your application developers or operators should inform you about update requirements. If you have any concern about the security of your systems, we are ready to help you.

If you have any question, please contact Alternatively, look at our documentation to know more about SeaCat application security technology.

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