TippingPoint Zero Day Initiative

Sun Java HsbParser.getSoundBank Stack Buffer Overflow Vulnerability

ZDI-09-076: November 4th, 2009


Affected Vendors

Affected Products

TippingPoint™ IPS Customer Protection

TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 8700. For further product information on the TippingPoint IPS:

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun Microsystems Java. User interaction is required in that a user must open a malicious file or visit a malicious web page.

The specific flaw exists in the parsing of long file:// URL arguments to the getSoundbank() function. Due to a lack of bounds checking on user supplied data a stack overflow can occur leading to remote code execution. Exploitation of this vulnerability can lead to system compromise under the credentials of the currently logged in user.

Vendor Response

Sun Microsystems has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2009-06-23 - Vulnerability reported to vendor
    2009-11-04 - Coordinated public release of advisory


This vulnerability was discovered by: