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>> Sun Java Runtime Environment Multiple Remote Integer and Buffer Overflow Vulnerabilities
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Title : Sun Java Runtime Environment Multiple Remote Integer and Buffer Overflow Vulnerabilities
VUPEN ID : VUPEN/ADV-2006-5073
CVE ID : CVE-2006-6731
Rated as : Critical 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2006-12-20
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Multiple vulnerabilities have been identified in Sun Java Runtime Environment, which could be exploited by attackers to bypass security restrictions and take complete control of an affected system.
The first issue is due to integer overflow errors in the "Java_sun_awt_image_ImagingLib_convolveBI()", "awt_parseRaster()", and "awt_parseColorModel()" functions when handling large image dimensions, which could be exploited by remote attackers to execute arbitrary commands by tricking a user into visiting a malicious web site.
The second vulnerability is due to a stack overflow error in the "Java_sun_awt_image_ImagingLib_lookupByteRaster()" function when handling malformed arrays, which could be exploted by attackers to compromise a vulnerable system via a malicious applet.
The third issue is due to an error in the "Java_sun_font_SunLayoutEngine_nativeLayout()" function when handling negative values, which could be exploited by attackers to cause a denial of service or execute arbitrary commands by convincing a user to visit a malicious Web page.
Affected Products
Sun Java JDK 1.5.x (for Windows, Solaris, and Linux)
Sun Java JRE 1.3.x (for Windows, Solaris, and Linux)
Sun Java JRE 1.4.x (for Windows, Solaris, and Linux)
Sun Java JRE 1.5.x / 5.x (for Windows, Solaris, and Linux)
Sun Java SDK 1.3.x (for Windows, Solaris, and Linux)
Sun Java SDK 1.4.x (for Windows, Solaris, and Linux)
Solution
Upgrade to JDK/JRE 5.0 Upgrade 8, SDK/JRE 1.4.2_13, or SDK/JRE 1.3.1_19 :
http://www.java.com
References
http://www.vupen.com/english/advisories/2006/5073
http://sunsolve.sun.com/search/document.do?assetkey=1-26-102729-1
Credits
Vulnerabilities reported by Chris Evans
ChangeLog
2006-12-20 : Initial release
Vulnerability Management
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