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Date: Tue, 19 May 2015 11:19:34 -0700
From: Stanislav Malyshev <>
To: Andrea Palazzo <>
Subject: Re: CVE Request + Advisory: PHP str_repeat() sign mismatch based
 memory corruption


> it is really likely
> that it would end up processed by one of these functions (string
> concatenation, for example).
> $makernote <> .= str_repeat <>("\x00",( $tiff_data <>[ 'Makernote_Tag' ][ 'Offset' ] - 8 ) );

OK, I guess with parsing external formats like EXIF it can happen, so
while I'm still not sure about remote exploitation, remote triggering is
a possibility, you've convinced me here.
Stas Malyshev

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