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Date: Sun, 25 Sep 2011 14:28:13 +0200
From: Pierre Joye <>
Subject: Re: CVE request: is_a() function may allow arbitrary
 code execution in PHP 5.3.7/5.3.8


Btw, the correct fix (and less restrictive) is to disable
allow_url_include, not  allow_url_fopen.


On Sat, Sep 24, 2011 at 3:56 PM, Vincent Danen <> wrote:
> Could a CVE be assigned for this flaw?  PHP 5.3.7 changed how the is_a()
> function worked, and as a result it could allow for remote arbitrary
> code execution if certain specific conditions are met (the blog post
> referenced below has a good writeup of the flaw).
> It looks like this is the fix:
> Thanks.
> --
> Vincent Danen / Red Hat Security Response Team


@pierrejoye | |

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