Public Service Announcement to Debian and Ubuntu Users

Posted on Tue, 13 May 2008
A weakness has been discovered in the random number generator used by OpenSSL on Debian and Ubuntu systems. As a result of this weakness, certain encryption keys are much more common than they should be, such that an attacker could guess the key through a brute-force attack given minimal knowledge of the system. This particularly affects the use of encryption keys in OpenSSH, OpenVPN and SSL certificates.

The fix involves updating your OpenSSL packages and regenerating any private keys made on recent versions of Debian (etch and newer) or Ubuntu (Feisty or later). For more information, see:

This issue was caused by a Debian-specific patch to OpenSSL and does not affect distributions which aren't derived from Debian.
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