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Date: Fri, 4 Nov 2016 03:10:21 -0400
From: <cve-assign@...re.org>
To: <robert@...oraproject.org>
CC: <cve-assign@...re.org>, <oss-security@...ts.openwall.com>,
<daniel@...x.se>
Subject: Re: [SECURITY ADVISORY] IDNA 2003 makes curl use wrong host
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Hash: SHA256
>> translated into `strasse.de` using IDNA 2003 but
>> is translated into `xn--strae-oqa.de` using IDNA 2008. Needless to say, those
>> host names could very well resolve to different addresses and be two
>> completely independent servers.
> Maybe
> MITRE (or somebody else) could share their thoughts about this, too?
In some situations, this would be a site-specific problem at a
registry. Although domain names can have a variety of uses of '-'
characters, the presence of a '-' as both the third character and the
fourth character is often recognized as a special case. Trying to
specify xn--strae-oqa.de directly when seeking a registration is very
different from trying to specify (for example) x--strae-oqa.de or
xn-strae-oqa.de.
Various other types of bugs (not necessarily security-relevant) have
been reported for this general concept, e.g., see:
https://framework.zend.com/issues/browse/ZF-6133
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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