Message-ID: <OF98534596.0F8E47EC-ON8825740A.005F6959-8625740A.005F9F03@3com.com>
Date: Wed, 12 Mar 2008 12:24:26 -0500
From: zdi-disclosures@...m.com
To: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: ZDI-08-009: Java Web Start tempbuff Stack Buffer
	Overflow

ZDI-08-009: Java Web Start tempbuff Stack Buffer Overflow
http://www.zerodayinitiative.com/advisories/ZDI-08-009
March 12, 2008

-- CVE ID:
CVE-2008-1188

-- Affected Vendors:
Sun Microsystems

-- Affected Products:
Sun Microsystems Java Runtime

-- TippingPoint(TM) IPS Customer Protection:
TippingPoint IPS customers have been protected against this
vulnerability by Digital Vaccine protection filter ID 5622. 
For further product information on the TippingPoint IPS, visit:

    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 useEncodingDecl() function used while
checking xml based JNLP files for UTF8 characters. When a user downloads
a malicious JNLP file, the data immediately preceding the opening of the
xml tag is read into a static buffer. If an overly long key name in the
xml header is included, 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=1-66-233323-1

-- Disclosure Timeline:
2007-09-14 - Vulnerability reported to vendor
2008-03-12 - Coordinated public release of advisory

-- Credit:
This vulnerability was discovered by:
    * Anonymous

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