On Wed, 9 Apr 2014, Geoffrey Thomas wrote:

> This only affects certs that were used on vulnerable versions of OpenSSL with
> allocation schemes that actually loaded the private key into freed memory that
> could be returned. I haven't seen a valid claim that this is anywhere near a
> significant fraction of the web.
>
> http://blog.erratasec.com/2014/04/why-heartbleed-doesnt-leak-private-key.html

Note that this has been updated by now. See also:


   Update:  Errata  Security's  Robert Graham [12]has acknowledged that he
   was mistaken in his assessment, and that private keys could be at risk.
   The original story below has been marked up accordingly.
[…]
   In [17]a post to the Errata Security blog, Robert Graham explained that
   it  is  highly  unlikely  that  private key data would be stored in the
   memory  buffer that could be leaked using the Heartbleed exploit. “What
   you can eavesdrop on with Heartbleed hacks is dynamic stuff, stuff that
   was allocated only moments ago,” he wrote. But that assertion has been
   refuted, and Graham has since rescinded it, as noted above.
[…]
   Terrence  Koeman  of MediaMonks told Ars he found signs of attempts to
   use  the  exploit  dating  back  to  November  2013. He used the packet
   content  of  a  successful  exploit  of the Heartbleed vulnerability to
   check  inbound  packets  logged  by  his  servers and found a number of
   incoming  packets  from  a  network  suspected of harboring a number of
   “bot”  servers that were apparently scans for the vulnerability—sending
   Heartbleed-style  requests  to  two  different  development  servers in
   requests that were about five minutes apart.

[12] https://twitter.com/julianor/status/454015858042757120


By now, we must assume that private key material *can* have been leaked,
and that this was being exploited five months ago already.

bye,
//mirabilos
-- 
«MyISAM tables -will- get corrupted eventually. This is a fact of life. »
“mysql is about as much database as ms access” – “MSSQL at least descends
from a database” “it's a rebranded SyBase” “MySQL however was born from a
flatfile and went downhill from there” – “at least jetDB doesn’t claim to
be a database”  ‣‣‣ Please, http://deb.li/mysql and MariaDB, finally die!


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