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Re: ZDI-10-191: Adobe Reader ICC Parsing Remote Code Execution Vulnerability
From: "Marcio B. Jr." <marcio.barbado () gmail com>
Date: Thu, 7 Oct 2010 10:41:56 -0300

Well, awesome. This sounds near-identical to some issues that the Sun JRE
had a few years back[1]. I wonder if the code shares a common lineage? :)


Yes, Chris,
though unnecessary (the lineage), it makes sense, really. And this is
due to Adobe and Sun, partnering in the ICC's foundation.



Regards,


On Thu, Oct 7, 2010 at 2:05 AM, Chris Evans <scarybeasts () gmail com> wrote:
On Wed, Oct 6, 2010 at 11:28 AM, ZDI Disclosures
<zdi-disclosures () tippingpoint com> wrote:

ZDI-10-191: Adobe Reader ICC Parsing Remote Code Execution Vulnerability
http://www.zerodayinitiative.com/advisories/ZDI-10-191
October 6, 2010

-- CVE ID:
CVE-2010-3621

-- CVSS:
9, (AV:N/AC:L/Au:N/C:P/I:P/A:C)

-- Affected Vendors:
Adobe

-- Affected Products:
Adobe Reader

-- Vulnerability Details:
This vulnerability allows remote attackers to execute arbitrary code on
vulnerable installations of Adobe Reader. User interaction is required
in that a target must be coerced into opening a file or visiting a web
page.

The specific flaw exists within the ACE.dll module responsible for
parsing ICC streams. When processing an ICC stream, the process performs
math on two DWORD values from the input file. If these values wrap over
the maximum integer value of 0xFFFFFFFF a mis-allocation can occur.
Later, the process uses one of the original DWORD values as a size to a
copy function. This can be abused by an attacker to overflow a stack
buffer and subsequently execute code under the context of the user
running the process.

Well, awesome. This sounds near-identical to some issues that the Sun JRE
had a few years back[1]. I wonder if the code shares a common lineage? :)

Cheers
Chris
[1] - http://scary.beasts.org/security/CESA-2006-004.html
http://scary.beasts.org/misc/jdk/badicc.jpg
(And additional integer problems not released at the time)
http://scary.beasts.org/misc/jdk/badicc2.jpg
http://scary.beasts.org/misc/jdk/badicc3.jpg
http://scary.beasts.org/misc/jdk/badicc4.jpg
http://scary.beasts.org/security/CESA-2007-005.html
In addition, there have been plenty of bugs against lcms[2] and Apple's ICC
profile parser.
So it seems like ICC profile parsing is hard ;-)
[2] - http://scary.beasts.org/security/CESA-2009-003.html

-- Vendor Response:
Adobe has issued an update to correct this vulnerability. More
details can be found at:

http://www.adobe.com/support/security/bulletins/apsb10-21.html

-- Disclosure Timeline:
2010-06-23 - Vulnerability reported to vendor
2010-10-06 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
   * Sebastian Apelt (www.siberas.de)

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_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/




Marcio Barbado, Jr.

_______________________________________________
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