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Date: Mon, 07 Nov 2011 16:55:18 +0100
From: Jan Lieskovsky <>
To: "Steven M. Christey" <>
Subject: CVE Request -- Ruby (OpenSSL extension) -- Insecure way of creation
 exponent value by private RSA key generation

Hello Kurt, Steve, vendors,

   a security flaw was found in the way the OpenSSL extension of the
Ruby programming language (of version from the Git trunk repository
after 2011-09-01 up to 2011-11-03) generated exponent value to be used
for private RSA key generation (the bug caused the exponent for the
generated key to be always '1'). A remote attacker could use this flaw
to bypass / corrupt integrity of services, depending on strong private
RSA keys generation mechanism.

Relevant upstream patch:


Could you allocate a CVE id for this?

Thank you && Regards, Jan.
Jan iankko Lieskovsky / Red Hat Security Response Team

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