[Full-disclosure] Leveraging pam_env to steal DSA keys

[Peter van Dijk <peter@xxxxxxxx>]

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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