Adobe Shockwave Director pamm Chunk Memory Corruption

TSL ID: FSC20101028-02

1. Affected Software

Adobe Shockwave Player, version 11.5.8.612 and prior

Reference: http://www.adobe.com/products/shockwaveplayer/

2. Vulnerability Summary

A memory corruption vulnerability exists in Adobe Shockwave Player while parsing crafted Adobe Director files (.dir or .dcr), that may lead to arbitrary code execution.

3. Vulnerability Analysis

The vulnerability is due to insufficient validation of certain fields while parsing 'pamm' chunk data. An attacker can leverage this vulnerability to write data to an attacker-controlled memory location. Successful exploitation could allow for the execution of arbitrary code within the security context of a target user.

4. Vulnerability Detection

TELUS Security Labs has confirmed the vulnerability in:

Adobe Shockwave Player versions 11.5.8.612 and 11.5.7.609

5. Workaround

Do not accept DIR or DCR files from untrusted sources.

6. Vendor Response

Patches have been made available to eliminate this vulnerability:

http://www.adobe.com/support/security/bulletins/apsb10-25.html

7. Disclosure Timeline

  2010-08-31 Reported to vendor
  2010-08-31 Initial vendor response
  2010-10-28 Coordinated public disclosure

8. Credits

Junaid Bohio, Vulnerability Research Team, TELUS Security Labs

9. References

  CVE: CVE-2010-4084
  Vendor: http://www.adobe.com/support/security/bulletins/apsb10-25.html

10. About TELUS Security Labs

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