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iDefense Security Advisory 02.08.08
Feb 08, 2008
Adobe Reader is a program for viewing Portable Document Format (PDF)
documents. Acrobat is the program used to create such documents. More
information is available at the following URLs.
library in Adobe Reader and Acrobat could allow an attacker to execute
arbitrary code as the current user.
EScript.api plug-in which is based on the reference implementation used
in Mozilla products. One of the methods exposed allows direct control
over low level features of the object, which in turn allows execution
of arbitrary code.
Exploitation of this vulnerability would allow an attacker to execute
arbitrary code as the current user. In order to exploit this
vulnerability, an attacker would have to convince the targeted user to
open a maliciously constructed file. This file could be sent directly
to the targeted user or linked from a website.
Insufficient error checking is performed on the input which allows,
among other things, attacker-supplied data to be written to arbitrary
offsets in memory, potentially resulting in arbitrary code execution.
iDefense has confirmed this vulnerability exists in Adobe Reader 8.1 on
Windows XP SP2. It is likely that other Adobe products that handle PDF
files, including previous versions of Adobe Reader, are also affected.
prompt the user that some components of the document may not function,
and provide an opportunity to enable it.
VI. VENDOR RESPONSE
Adobe released version 8.1.2 of Adobe Reader and Acrobat to address this
vulnerability. Although there is currently no update for version 7.0.9,
Adobe reports it does plan to release one at a later date. For more
information, visit the vendor's advisory at the following URL.
VII. CVE INFORMATION
The Common Vulnerabilities and Exposures (CVE) project has assigned the
name CVE-2007-5663 to this issue. This is a candidate for inclusion in
the CVE list (http://cve.mitre.org/), which standardizes names for
VIII. DISCLOSURE TIMELINE
10/03/2007 Initial vendor notification
10/03/2007 Initial vendor response
10/26/2007 Request for status
10/26/2007 Status - Est. early January
01/04/2008 Request for status
01/04/2008 Status - Scheduled early February
01/28/2008 Adobe plans patch for 8, but not 7
01/30/2008 Concerns about the plan e-mailed to Adobe
01/31/2008 Telephone call to clarify concerns
02/06/2008 Adobe releases 8.1.2
02/07/2008 Adobe publishes APSA08-01
02/08/2008 Public disclosure
This vulnerability was discovered by Greg MacManus of VeriSign iDefense
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X. LEGAL NOTICES
Copyright © 2008 iDefense, Inc.
Permission is granted for the redistribution of this alert
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Disclaimer: The information in the advisory is believed to be accurate
at the time of publishing based on currently available information. Use
of the information constitutes acceptance for use in an AS IS condition.
There are no warranties with regard to this information. Neither the
author nor the publisher accepts any liability for any direct,
indirect, or consequential loss or damage arising from use of, or
reliance on, this information.