Advisory Details

July 17th, 2008

Sun Java Web Start vm args Stack-Based Buffer Overflow Vulnerability

ZDI-08-043
ZDI-CAN-287

CVE ID CVE-2008-3111
CVSS SCORE
AFFECTED VENDORS Sun Microsystems
AFFECTED PRODUCTS Java Runtime
TREND MICRO CUSTOMER PROTECTION Trend Micro TippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 6013. For further product information on the TippingPoint IPS: http://www.tippingpoint.com
VULNERABILITY DETAILS

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Sun Java Web Start. User interaction is required to exploit this vulnerability in that the target must visit a malicious page.

The specific flaw exists in the GetVMArgsOption() function used while parsing the java-vm-args attribute of the j2se tag in xml based JNLP files. When a user downloads a malicious JNLP file, the vulnerable attribute is read into a static buffer. If an overly long value is defined by the java-vm-args attribute, a stack based buffer overflow occurs, resulting in an exploitable condition.

VENDOR RESPONSE Sun Microsystems has issued an update to correct this vulnerability. More details can be found at:
http://sunsolve.sun.com/search/document.do?assetkey=1-26-238905-1
DISCLOSURE TIMELINE
  • 2008-01-17 - Vulnerability reported to vendor
  • 2008-07-17 - Coordinated public release of advisory
CREDIT Anonymous
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