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Message-Id: <201103131933.33082.oeriksson@mandriva.com>
Date: Sun, 13 Mar 2011 19:33:32 +0100
From: Oden Eriksson <oeriksson@...driva.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: PHP substr_replace() use-after-free
söndagen den 13 mars 2011 15.00.10 skrev Felipe Pena:
> Hi,
>
> I just found an use-after-free in PHP's substr_replace() function caused by
> passing the same variable multiple times to the function, which makes the
> PHP to use the same pointer in three variables inside the function, so when
> the pointer is changed by a type conversion inside the function, it
> invalids the other variables.
>
> The PHP security team has seen noticed, and a bug already was filed in the
> bugtracker (http://bugs.php.net/bug.php?id=54238 [private])
>
> $ sapi/cli/php ../bug.php
> array(1) {
> [0]=>
> string(5) "0Ȅ y"
> }
> array(1) {
> [0]=>
> string(1) "0"
> }
>
>
> Thanks.
It seems only 5.2 is affected because I couldn't reproduce it on 5.3. Or?
--
Regards // Oden Eriksson
Security team manager - Mandriva
CEO NUX AB
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