Leveraging pam_env to steal DSA keys

[Peter van Dijk <peter () 7bits nl>]

Hello,

regarding http://www.ubuntu.com/usn/usn-1140-1/ posted today (originally documented as 
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2010-3435), what
the notices do not mention is that this attack, under certain circumstances, can lift enough key material from a 
private DSA key to reconstruct the whole key in feasible time.

More information in my article at http://7bits.nl/projects/pamenv-dsakeys/pamenv-dsakeys.html
Related blogpost at http://7bits.nl/blog/2011/05/30/from-symlinks-to-private-keys

Comments or questions, please post a comment at the blog post or mail me privately.

Kind regards,
Peter van Dijk
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