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Date: Mon, 31 Aug 2009 17:23:53 +0200
From: Tomas Hoger <>
Cc:, "Steven M. Christey" <>
Subject: Re: Re: CVE request: perl-IO-Socket-SSL certificate
 hostname compare bug

On Sat, 29 Aug 2009 20:45:53 +0200 Steffen Ullrich
<> wrote:

> - the feature to help checking the hostname against the certificate is fairly new

Introduced in 1.14, unless I'm mistaken:

It may be good to have this listed in the CVE description.

Anyway, prefix requirement is another mitigation, as one may not be
able to get valid certificate for a prefix of arbitrary host name
(though it may be easier for TLDs as .com and .net via .co and .ne).

Speaking of prefixes, has anyone checked IO-Socket-SSL for
CVE-2009-2408-like issues?  If there is an issues, should it get fixed
in IO-Socket-SSL or in Net-SSLeay?

Tomas Hoger / Red Hat Security Response Team

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