ANN: eGenix pyOpenSSL Distribution 0.13.7
eGenix Team: M.-A. Lemburg
info at egenix.com
Fri Jan 9 13:32:14 CET 2015
eGenix.com pyOpenSSL Distribution
An easy-to-install and easy-to-use distribution
of the pyOpenSSL Python interface for OpenSSL -
available for Windows, Mac OS X and Unix platforms
This announcement is also available on our web-site for online reading:
The eGenix.com pyOpenSSL Distribution includes everything you need to
get started with SSL in Python.
It comes with an easy-to-use installer that includes the most recent
OpenSSL library versions in pre-compiled form, making your application
independent of OS provided OpenSSL libraries:
pyOpenSSL is an open-source Python add-on that allows writing SSL/TLS-
aware network applications as well as certificate management tools:
OpenSSL is an open-source implementation of the SSL/TLS protocol:
This new release of the eGenix.com pyOpenSSL Distribution updates the
included OpenSSL version to the latest OpenSSL 1.0.1h version and adds
a few more context options:
New in OpenSSL
* Updated included OpenSSL libraries from OpenSSL 1.0.1j to
1.0.1k. See https://www.openssl.org/news/secadv_20150108.txt for a
complete list of changes. The following fixes are relevant for
- CVE-2014-8275: OpenSSL accepts several non-DER-variations of
certificate signature algorithm and signature encodings. OpenSSL
also does not enforce a match between the signature algorithm
between the signed and unsigned portions of the certificate. By
modifying the contents of the signature algorithm or the encoding
of the signature, it is possible to change the certificate's
- CVE-2014-3572: An OpenSSL client will accept a handshake using an
ephemeral ECDH ciphersuite using an ECDSA certificate if the
server key exchange message is omitted. This effectively removes
forward secrecy from the ciphersuite.
- CVE-2015-0204: An OpenSSL client will accept the use of an RSA
temporary key in a non-export RSA key exchange ciphersuite. A
server could present a weak temporary key and downgrade the
security of the session.
- CVE-2014-3570: Bignum squaring (BN_sqr) may produce incorrect
results on some platforms, including x86_64. This bug occurs at
random with a very low probability, and is not known to be
exploitable in any way, though its exact impact is difficult to
- CVE-2015-0205: An OpenSSL server will accept a DH certificate for
client authentication without the certificate verify
message. This effectively allows a client to authenticate without
the use of a private key. This only affects servers which trust a
client certificate authority which issues certificates containing
DH keys: these are extremely rare and hardly ever encountered.
Please see the product changelog for the full set of changes:
pyOpenSSL / OpenSSL Binaries Included
In addition to providing sources, we make binaries available that
include both pyOpenSSL and the necessary OpenSSL libraries for all
supported platforms: Windows x86 and x64, Linux x86 and x64, Mac OS X
PPC, x86 and x64.
We've also added egg-file distribution versions of our eGenix.com
pyOpenSSL Distribution for Windows, Linux and Mac OS X to the
available download options. These make setups using e.g. zc.buildout
and other egg-file based installers a lot easier.
The download archives and instructions for installing the package can
be found at:
Before installing this version of pyOpenSSL, please make sure that
you uninstall any previously installed pyOpenSSL version. Otherwise,
you could end up not using the included OpenSSL libs.
Commercial support for these packages is available from eGenix.com.
for details about our support offerings.
For more information about the eGenix pyOpenSSL Distribution, licensing
and download instructions, please visit our web-site or write to
sales at egenix.com.
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eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48
D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg
Registered at Amtsgericht Duesseldorf: HRB 46611
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