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Category:   Application (Generic)  >   Sun GlassFish Enterprise Server Vendors:   Oracle, Sun
Oracle GlassFish Server Hash Table Collision Bug Lets Remote Users Deny Service
SecurityTracker Alert ID:  1026476
SecurityTracker URL:
CVE Reference:   CVE-2011-5035   (Links to External Site)
Updated:  Jan 18 2012
Original Entry Date:  Dec 29 2011
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  

Description:   A vulnerability was reported in Oracle GlassFish Server. A remote user can cause denial of service conditions.

A remote user can send specially crafted POST request values to trigger hash collisions and cause significant performance degradation on the target server.

The original advisory is available at:

Alexander Klink of n.runs AG and Julian Walde of Technische Universitat Darmstadt reported this vulnerability. Scott A. Crosby and Dan S. Wallach of Rice University reported the theoretical attack.

Impact:   A remote user can cause performance to degrade on the target server.
Solution:   The vendor has issued a fix, described in their January 2012 Critical Patch Update advisory.

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Randomization error
Underlying OS:   UNIX (Solaris - SunOS)

Message History:   None.

 Source Message Contents

Date:  Thu, 29 Dec 2011 13:24:41 +0000
Subject:  Oracle Glassfish / Sun Glassfish

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