[stunnel-users] Configure Error

Rob Lockhart rlockhar at gmail.com
Thu Apr 13 00:49:48 CEST 2017

On Wed, Apr 12, 2017 at 5:22 PM, Kenway Ng <kenwayng at gmail.com> wrote:

> I am trying to upgrade our version of stunnel.  Our SME left and now I am
> trying to upgrade stunnel to fix a vulnerability .  I am being told to use
> TLS1.1 or higher
> $ ./stunnel -version
> stunnel 4.15 on x86_64-redhat-linux-gnu with OpenSSL 0.9.8e-fips-rhel5 01
> Jul 2008

​I don't have RHEL5 64-bit but these links may help:



​These links involve re-compiling OpenSSL and Stunnel, in that order. I
would opt for OpenSSL 1.0.2k (latest as of 20170412) since 1.0.1 and below
are all EOL as of 12/31/2016. OpenSSL 0.9.8 supports only TLS v1.0​,
whereas OpenSSL 1.0.1 supports TLS v1.0, v1.1 and v1.2.

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