(Red Hat Issues Fix) Apache Tomcat Hash Table Collision Bug Lets Remote Users Deny Service
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SecurityTracker Alert ID: 1026919 |
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SecurityTracker URL: http://securitytracker.com/id/1026919
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CVE Reference:
CVE-2012-0022
(Links to External Site)
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Date: Apr 11 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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Version(s): 5.5.34, 6.0.34, 7.0.22; and prior versions
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Description:
A vulnerability was reported in Apache Tomcat. 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.
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Impact:
A remote user can cause performance to degrade on the target server.
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Solution:
Red Hat has issued a fix.
The Red Hat advisory is available at:
https://rhn.redhat.com/errata/RHSA-2012-0474.html
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Vendor URL: tomcat.apache.org/ (Links to External Site)
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Cause:
Randomization error
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Underlying OS:
Linux (Red Hat Enterprise)
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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, 11 Apr 2012 19:06:25 +0000
Subject: Red Hat Security Advisory
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Synopsis: Moderate: tomcat5 security update
Advisory ID: RHSA-2012:0474-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0474.html
Issue date: 2012-04-11
CVE Names: CVE-2011-4858 CVE-2012-0022
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