oss-sec mailing list archives

Re: CVE request: xchat/hexchat don't properly verify SSL certificates


From: jmm () debian org
Date: Sun, 22 Feb 2015 19:58:22 +0100

On Thu, Jan 29, 2015 at 11:52:08AM -0700, Vincent Danen wrote:
As reported [1]:

XChat did not verify that the server hostname matched the domain name in the
subject's Common Name (CN) or subjectAltName field in X.509 certificates.
This could allow a man-in-the-middle attacker to spoof an SSL server if they
had a certificate that was valid for any domain name.

The same code is used in hexchat.

This was initially reported to hexchat in 2013 [2] and fixed last November
[3].  I'm not sure if it should receive a 2013 or a 2014 CVE.  Can one be
assigned to this?

Thanks.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1081839
[2] https://github.com/hexchat/hexchat/issues/524
[3] https://github.com/hexchat/hexchat/commit/c9b63f7f9be01692b03fa15275135a4910a7e02d

This seems to have fallen through the cracks, explicitly
adding cve-assign to CC.

Cheers,
        Moritz


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