OpenSSL compliance with Linux distributions

Jakob Bohm jb-openssl at
Tue Aug 18 04:10:36 UTC 2020

The key thing to do is to make those client applications not request the 
ssl23-method from OpenSSL 0.9.x .
ssl23 explicitly requests this backward-compatibility feature while 
OpenSSL 3.x.x apparently deleted the
ability to respond to this "historic" TLS hello format, which is also 
sent by some not-that-old web browsers.

On 05/08/2020 22:19, Skip Carter wrote:
> Patrick,
> I am also supporting servers running very old Linux systems and I can
> tell you that YES you can upgrade from source. I have built
>    openssl-1.1.1 from source on such systems with no problems.
> On Wed, 2020-08-05 at 21:49 +0200, Patrick Mooc wrote:
>> Hello,
>> I'm using an old version of OpenSSL (0.9.8g) on an old Linux Debian
>> distribution (Lenny).
>> Is it possible to upgrade OpenSSL version without upgrading Linux
>> Debian
>> distribution ?
>> If yes, up to which version of OpenSSL ?
>> Are all versions of OpenSSL compliant with all Linux Debian
>> distribution ?
>> Thank you in advance for your answer.
>> Best Regards,


Jakob Bohm, CIO, Partner, WiseMo A/S.
Transformervej 29, 2860 Soborg, Denmark.  Direct +45 31 13 16 10
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