Security Bulletin
Summary
Products bundled with an embedded IBM WebSphere Application Server (eWAS) or IBM WebSphere Application Server (WAS) are subject to a potential security exposure due to the Java HashTable implementation which can result in a Denial of Service (DoS) exposure when using Web based applications such as IBM Rational Build Forge or IBM Rational Automation Framework (RAF).
Vulnerability Details
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CVE ID: CVE-2012-0193
Description: IBM WebSphere Application Server (WAS) 6.0 through 6.0.2.43, 6.1 before 6.1.0.43, 7.0 before 7.0.0.23, and 8.0 before 8.0.0.3 computes hash values for form parameters without restricting the ability to trigger hash collisions predictably, which allows remote attackers to cause a denial of service (CPU consumption) by sending many crafted parameters.
Review security bulletin 1577532: Potential security vulnerability when using Web based applications on IBM WebSphere Application Server due to Java HashTable implementation vulnerability (PM53930/PM57565) for more details.
CVE ID: CVE-2012-0022
Description: Apache Tomcat 5.5.x before 5.5.35, 6.x before 6.0.34, and 7.x before 7.0.23 uses an inefficient approach for handling parameters, which allows remote attackers to cause a denial of service (CPU consumption) via a request that contains many parameters and parameter values, a different vulnerability than CVE-2011-4858.
Affected Products and Versions
If your product was installed with the WebSphere Application Server or eWAS version 6.1 or 7.0 server that was shipped with your product, you are impacted by a security vulnerability which can cause performance or denial of service (DoS) issues.
Products deployed on Apache Tomcat 5.5.34 or earlier are impacted by this vulnerability which can cause performance or Denial of Service (DoS) issues.
Remediation/Fixes
You are advised to read the instructions in this Interim Fix document linked below and update your application servers to correct this issue:
PM53930: Collisions in HashTable May Cause DoS Vulnerability
If you are running Rational Build Forge 7.0.2.7, 7.1.2.2.1, or 7.1.3.0, or older releases in those streams, follow the directions directly.
If you are running Rational Build Forge 7.1.3.1 or 7.1.2.3, install Tomcat version 7.0.23 (or later) instead of the noted 5.5.x as outlined in the note. The instructions are otherwise the same.
Attempting to use Tomcat 7.0.x with Rational Build Forge installs that shipped with Tomcat 5.5.9 will result in a non-functional install.
- For UNIX/Linux customers, technote 1499971: Upgrading Apache, Tomcat and PHP layers as shipped with Rational Build Forge for Linux and UNIX systems
- For Windows customers, technote 1497950: How to upgrade the Apache, Tomcat and PHP layers as shipped with Rational Build Forge for Windows
Workarounds and Mitigations
None
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References
Acknowledgement
None
Change History
* 3 February 2012: Original copy published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Internal Use Only
2/7/12 Tim Parker said, regarding
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"Attempting to use Tomcat 7.0.x with Rational Build Forge installs that shipped with Tomcat 5.5.9 will result in a non-functional install." | ||
◄ | i don't believe this is true | 5:05:12 PM |
◄ | again, i am not certain as the product dev/support team would have to answer for sure. i believe that it can be used but we just don't ship with it in the older versions | 5:05:56 PM |
| emcarrol@us.ib... | The SME in Support , Mike Parson (certainly not me) wrote it. | |
| Timothy M. (Ti... | ok, if that is what they want to say then i guess that is their decision | 5:08:14 PM |
| Date: | 01/31/2012 10:48 AM |
I'm not sure for the much older releases, and not sure if we really need that...
Best regards,
Frank Wang( 王凡 )
China Software Development Lab,
BeijingTel:86-10-82452676
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Document Information
Modified date:
16 June 2018
UID
swg21580154