Secunia Research: Adobe Reader JBIG2 Symbol Dictionary Buffer Overflow

======================================================================

                 Secunia Research 25/03/2009

  - Adobe Reader JBIG2 Symbol Dictionary Buffer Overflow -

======================================================================
Table of Contents

Affected Software…1
Severity…2
Vendor's Description of Software…3
Description of Vulnerability…4
Solution…5
Time Table…6
Credits…7
References…8
About Secunia…9
Verification…10

======================================================================
1) Affected Software

• Adobe Reader versions 8.1.3 and 9.0.0

NOTE: Other versions may also be affected.

======================================================================
2) Severity

Rating: Highly critical
Impact: System access
Where: Remote

======================================================================
3) Vendor's Description of Software

"Adobe Reader software is the global standard for electronic document
sharing. It is the only PDF file viewer that can open and interact
with all PDF documents."

Product Link:
http://www.adobe.com/products/reader/

======================================================================
4) Description of Vulnerability

Secunia Research has discovered a vulnerability Adobe Reader, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error in the processing
of JBIG2 streams. This can be exploited to cause a heap-based buffer
overflow via a specially crafted PDF file containing a malformed
JBIG2 symbol dictionary segment.

Successful exploitation may allow execution of arbitrary code.

======================================================================
5) Solution

Update to version 7.1.1, 8.1.4, or 9.1.

======================================================================
6) Time Table

06/03/2009 - Vendor notified.
07/03/2009 - Vendor response.
25/03/2009 - Public disclosure.

======================================================================
7) Credits

Discovered by Alin Rad Pop, Secunia Research.

======================================================================
8) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2009-0193 for the vulnerability.

======================================================================
9) About Secunia

Secunia offers vulnerability management solutions to corporate
customers with verified and reliable vulnerability intelligence
relevant to their specific system configuration:

http://secunia.com/advisories/business_solutions/

Secunia also provides a publicly accessible and comprehensive advisory
database as a service to the security community and private
individuals, who are interested in or concerned about IT-security.

http://secunia.com/advisories/

Secunia believes that it is important to support the community and to
do active vulnerability research in order to aid improving the
security and reliability of software in general:

http://secunia.com/secunia_research/

Secunia regularly hires new skilled team members. Check the URL below
to see currently vacant positions:

http://secunia.com/corporate/jobs/

Secunia offers a FREE mailing list called Secunia Security Advisories:

http://secunia.com/advisories/mailing_lists/

======================================================================
10) Verification

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2009-14/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

======================================================================