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Re: SSLv3 fallback attack POODLE

From: Kamil Dudka <kdudka_at_redhat.com>
Date: Fri, 17 Oct 2014 12:08:59 +0200

On Friday 17 October 2014 06:56:48 Florian Weimer wrote:
> On 10/15/2014 08:58 AM, Ray Satiro wrote:
> > I read today of a new method to decrypt SSL called POODLE. If you
> > haven't read of it you should. It works by using SSL fallback behavior
> > to get SSLv3 which can now be decrypted [1][2].
>
> The OpenSSL change is unnecessary because the OpenSSL code does not
> actually fall back to SSL 3.0.
>
> The only TLS backend which implements insecure fallback to SSL 3.0 is
> NSS. Perhaps that fallback code can be removed completely?

I am all for removing the fallback code in upstream and Fedora but would
be careful with RHEL. There is an ongoing discussion in RHBZ:

https://bugzilla.redhat.com/CVE-2014-3566

Kamil
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Received on 2014-10-17