Sun Java Web Start JNLP file j2se element heap-size buffer overflow

Added: 07/23/2008
CVE: CVE-2008-3111
BID: 30148
OSVDB: 46959

Background

Sun Java Web Start allows standalone Java applications, called JNLP files, to be executed by the Java Runtime Environment (JRE).

Problem

A buffer overflow vulnerability in Sun Java Web Start allows command execution when the user opens a JNLP file containing a j2se element with a long, specially crafted initial-heap-size or max-heap-size parameter.

Resolution

Upgrade to JDK and JRE 6 Update 7 or later, JDK and JRE 5.0 Update 16 or later, or SDK and JRE 1.4.2_18 or later.

References

http://sunsolve.sun.com/search/document.do?assetkey=1-66-238905-1

Limitations

Exploit works on Sun Java Runtime Environment (JRE) 6 Update 3 and requires a user to load the exploit file.

This exploit may not work on unpatched versions of Windows XP SP2.

Platforms

Windows 2000
Windows XP
Red Hat Enterprise Linux 4

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