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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2014.0983 Security Bulletin: IBM Security Network Protection System CPU utilization (CVE-2014-0963) 16 June 2014 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: IBM Security Network Protection Publisher: IBM Operating System: Network Appliance Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2014-0963 Reference: ESB-2014.0886 ESB-2014.0783 ESB-2014.0764 ESB-2014.0714 ESB-2014.0679 Original Bulletin: http://www-01.ibm.com/support/docview.wss?uid=swg21675355 - --------------------------BEGIN INCLUDED TEXT-------------------- Security Bulletin: IBM Security Network Protection System CPU utilization (CVE-2014-0963) Security Bulletin Document information More support for: IBM Security Network Protection Software version: 5.1, 5.1.1, 5.1.2, 5.1.2.1, 5.2.0 Operating system(s): Firmware Reference #: 1675355 Modified date: 2014-06-05 Summary IBM Security Network Protection System is affected by a problem related to the SSL implementation which, under very specific conditions, can cause CPU utilization to rapidly increase. Vulnerability Details CVE ID: CVE-2014-0963 DESCRIPTION: IBM Security Network Protection System is affected by a problem with the handling of certain SSL messages. The TLS implementation can, under very specific conditions, cause CPU utilization to rapidly increase. The situation occurs only in a certain error case that causes a single thread to begin looping. If this happens multiple times, more threads will begin to loop and an increase in CPU utilization will be seen. This increase could ultimately result in CPU exhaustion and unresponsiveness of the IBM Security Network Protection System and other software running on the affected system. This issue can affect the availability of the system, but does not impact system confidentiality or integrity. This vulnerability can be remotely exploited, authentication is not required and the exploit is moderately complex. To determine if your systems are being affected by this issue, you can monitor the CPU utilization for IBM Security Network Protection System instances. CVSS Base Score: 7.1 CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/92844 for the current score CVSS Environmental Score*: Undefined CVSS Vector: (AV:N/AC:M/Au:N/C:N/I:N/A:C) Affected Products and Versions Products: IBM Security Network Protection (XGS) models 3100, 4100, 5100 Firmware versions: 5.1, 5.1.1, 5.1.2, 5.1.2.1, 5.2 Remediation/Fixes IBM has provided patches for all affected versions. Follow the installation instructions in the README files included with the patch. 5.1.0.0-ISS-XGS-All-Models-Hotfix-FP0009 for IBM Security Network Protection products at version 5.1 http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Security%2BSystems&product=ibm/Tivoli/IBM+Security+Network+Protection&release=5.1&platform=Windows&function=all 5.1.1.0-ISS-XGS-All-Models-Hotfix-FP0004 for IBM Security Network Protection products at version 5.1.1 http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Security%2BSystems&product=ibm/Tivoli/IBM+Security+Network+Protection&release=5.1.1&platform=Windows&function=all 5.1.2.0-ISS-XGS-All-Models-Hotfix-FP0005 for IBM Security Network Protection products at version 5.1.2 http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Security%2BSystems&product=ibm/Tivoli/IBM+Security+Network+Protection&release=5.1.2&platform=Windows&function=all 5.1.2.1-ISS-XGS-All-Models-Hotfix-FP0001 for IBM Security Network Protection products at version 5.1.2.1 http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Security%2BSystems&product=ibm/Tivoli/IBM+Security+Network+Protection&release=5.1.2&platform=Windows&function=all 5.2.0.0-ISS-XGS-All-Models-Hotfix-FP0001 for IBM Security Network Protection products at version 5.2 http://www-933.ibm.com/support/fixcentral/swg/selectFixes?parent=Security%2BSystems&product=ibm/Tivoli/IBM+Security+Network+Protection&release=5.2&platform=Windows&function=all Workarounds and Mitigations None References Complete CVSS Guide On-line Calculator V2 Related information IBM Secure Engineering Web Portal IBM Product Security Incident Response Blog *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 According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/render.html?cid=1980 =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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