Re: CVE Request: zeromq downgrade attack

[Salvatore Bonaccorso <carnil () debian org>]

Hi,

On Thu, May 07, 2015 at 04:49:08PM +0200, Alessandro Ghedini wrote:
> [ CCing upstream mailing list ]
>
> Hello,
>
> From https://github.com/zeromq/libzmq/issues/1273 :
>
> > It is easy to bypass the security mechanism in 4.1.0 and 4.0.5 by sending a
> > ZMTP v2 or earlier header. The library accepts such connections without
> > applying its security mechanism.
> >
> > Solution: if security is defined on a socket, reject all V2 and earlier
> > connections, unconditionally.
>
> A patch for the zeromq 4.0.x stable series is available at
> https://github.com/zeromq/zeromq4-x/commit/b6e3e0f601e2c1ec1f3aac880ed6a3fe63043e51
>
> AFAICT no CVE has been assigned (or requested) for this, and the issue has
> been public since December of last year.
>
> Could a CVE be assigned please?

For reference, an update for this issue has been released yesterday in
Debian as
https://lists.debian.org/debian-security-announce/2015/msg00144.html

Regards,
Salvatore