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Date: Tue, 16 Oct 2012 14:40:10 +0200
From: Matthias Weckbecker <mweckbecker@...e.de>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: ruby file creation due in insertion of illegal NUL character
On Friday 12 October 2012 22:50:41 Vincent Danen wrote:
> Just noticed this today on ruby's web site:
>
> http://preview.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerabi
>lity/
>
> The fix is located here:
>
> http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=37163
>
> I don't see a CVE name associated with the announcement or commit, so
> I don't believe one has been assigned.
Technically, this would also apply to Perl (at least with 5.12.3). Or am I
missing the point?
$ perl -we 'open $fh, "+>", "perl\0foo"; print $fh "x"x2; close $fh'
$ ls perl
perl
If the third parameter is double-quoted. I wouldn't call it a vulnerability
though. Just wanted to note it.
Matthias
--
Matthias Weckbecker, Senior Security Engineer, SUSE Security Team
SUSE LINUX Products GmbH, Maxfeldstr. 5, D-90409 Nuernberg, Germany
Tel: +49-911-74053-0; http://suse.com/
SUSE LINUX Products GmbH, GF: Jeff Hawn, HRB 16746 (AG Nuernberg)
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