(Oracle Issues Fix for Oracle Secure Backup) PHP Hash Table Collision Bug Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1027272 |
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SecurityTracker URL: http://securitytracker.com/id/1027272
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CVE Reference:
CVE-2011-4885
(Links to External Site)
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Date: Jul 18 2012
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Impact:
Denial of service via network
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Description:
A vulnerability was reported in PHP. A remote user can cause denial of service conditions. Oracle Secure Backup is affected.
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.
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Impact:
A remote user can cause performance to degrade on the target server.
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Solution:
Oracle has issued a fix for Oracle Secure Backup, described in their July 2012 Critical Patch Update advisory.
The vendor's advisory is available at:
http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
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Cause:
Randomization error
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Underlying OS:
Linux (Any), UNIX (Any), Windows (Any)
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Message History:
This archive entry is a follow-up to the message listed below.
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Source Message Contents
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Date: Wed, 18 Jul 2012 01:57:40 +0000
Subject: Oracle Secure Backup
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http://www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
CVE-2011-3192
CVE-2011-4885
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