[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <1404259840.277251289249903379.JavaMail.root@zmail01.collab.prod.int.phx2.redhat.com>
Date: Mon, 8 Nov 2010 15:58:23 -0500 (EST)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: coley <coley@...re.org>
Subject: Re: CVE Request: PHP 5.3.3, libmbfl, mb_strcut
Please use CVE-2010-4156
Thanks.
--
JB
----- "Pierre Joye" <pierre.php@...il.com> wrote:
> hi,
>
> Mateusz reported the following issue earlier today.
>
> Updated patch, tests pass now: http://pastie.org/1279682
>
> Information disclosure flaw. PHP 5.2 is not affected (newer version of
> libmbfl).
>
> PHP 5.3 and trunk uses libmbfl 1.1.0.
>
>
> ---------- Forwarded message ----------
> From: Mateusz Kocielski <m.kocielski@...il.com>
> Date: Sun, Nov 7, 2010 at 6:47 PM
> Subject: mb_strcut
> To: security@....net
>
>
> Hello,
>
> I've found flaw in the mb_strcut function, php doesn't the length
> parameter passed to the function in all possible cases.
>
> Simple exploitation:
>
> <?php
> $b = "bbbbbbbbbbb";
> str_repeat("THIS IS A SECRET MESSAGE, ISN'T IT?", 1);
> $var3 = mb_strcut($b, 0, 1000);
> echo $var3;
> ?>
>
> Pierre suggested the following patch:
> http://pastie.org/pastes/1279428/text . I've tested it with your test
> suite, one of the mbstring related test cases failed: Bug #49354
> (mb_strcut() cuts wrong length when offset is in the middle of a
> multibyte character) [ext/mbstring/tests/bug49354.phpt]
>
>
> --
> Pierre
>
> @pierrejoye | http://blog.thepimp.net | http://www.libgd.org
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
