Freeze Break: SSLv3

Kevin Fenzi kevin at scrye.com
Wed Oct 15 14:03:32 UTC 2014


On Tue, 14 Oct 2014 23:06:08 -0700
"T.C. Hollingsworth" <tchollingsworth at gmail.com> wrote:

> On Tue, Oct 14, 2014 at 9:03 PM, Kevin Fenzi <kevin at scrye.com> wrote:
> > Sadly, I didn't test auth connections, and they are broken.
> >
> > Seems koji hard codes SSLv3 as the one and only ssl method. ;(
> >
> > We will need to get a patch for koji before we can switch it over.
> 
> I fixed connecting to a private instance with the attached patch.  I
> was able to submit a scratch build to the Fedora koji with it applied
> too.
> 
> Note that it only forces TLSv1 because pyOpenSSL in F20 doesn't seem
> to support TLSv1.1 or TLSv1.2.  :-(
> 
> -T.C.

Yeah, I attached pretty much an identical patch to: 

https://bugzilla.redhat.com/show_bug.cgi?id=1152823

Dennis might have a patch he did a while back to just switch it to use
pycurl. 

Sadly, since this is on the client end, we will have to: 

* Build updates with whatever fix we need for all branches. 
* Push them out and wait for them to get into the hands of maintainers. 
* Cut things over to disallow SSLv3 (breaking all people who didn't
  upgrade). 

Perhaps we can figure out a way to keep SSLv3 enabled, but disable
ciphers that are susceptable?

:( 

kevin
kevin
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