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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:  http://securitytracker.com/id/1026476
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:

http://www.nruns.com/_downloads/advisory28122011.pdf

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:

http://www.oracle.com/technetwork/topics/security/cpujan2012-366304.html

Vendor URL:  www.oracle.com/technetwork/topics/security/cpujan2012-366304.html (Links to External Site)
Cause:   Randomization error
Underlying OS:  UNIX (Solaris - SunOS)

Message History:   None.


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