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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2013.1278 Citrix XenClient XT Multiple Security Updates 13 September 2013 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: XenServer Publisher: Citrix Operating System: Citrix XenServer Impact/Access: Root Compromise -- Existing Account Execute Arbitrary Code/Commands -- Existing Account Increased Privileges -- Existing Account Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2013-2601 CVE-2013-2196 CVE-2013-2195 CVE-2013-2194 CVE-2013-1432 CVE-2013-0231 CVE-2013-0217 CVE-2013-0216 Reference: ESB-2013.0931 ESB-2013.0884 ESB-2013.0693 ESB-2013.0645 ESB-2013.0539 ESB-2013.0299 ESB-2013.0283 Original Bulletin: http://support.citrix.com/article/CTX138633 - --------------------------BEGIN INCLUDED TEXT-------------------- Citrix XenClient XT Multiple Security Updates Document ID: CTX138633 Created On: Aug 28, 2013 Updated On: Aug 28, 2013 Severity: Medium Description of Problem A number of security vulnerabilities have been identified in Citrix XenClient XT. These vulnerabilities affect all currently supported versions of Citrix XenClient XT up to and including version 3.1.3. The following vulnerabilities have been addressed: - - CVE-2013-0216 & CVE-2013-0217: Linux netback DoS via malicious guest ring - - CVE-2013-0231: Linux pciback DoS via not rate limited log messages - - CVE-2013-1432: Page reference counting error - - CVE-2013-2194, CVE-2013-2195 & CVE-2013-2196: Arbitrary code injection into the toolstack from PV guests - - CVE-2013-2601: User can execute arbitrary commands within the NDVM by creating network connections in the UIVM - - INTEL-SA-00035: SINIT Authenticated Code Module Privilege Escalation What Customers Should Do New versions of Citrix XenClient XT have been released to address these issues. Citrix recommends that customers using Citrix XenClient XT identify and deploy these new versions. Citrix XenServer 3.1.3 and earlier: XenClient XT version 3.1.4 may be downloaded from http://www.citrix.com/downloads/xenclient/product-software/xenclient-xt-314.html Citrix XenServer 2.1.2 and earlier: XenClient XT version 2.1.3 may be downloaded from http://www.citrix.com/downloads/xenclient/product-software/xenclient-xt-213.html What Citrix Is Doing Citrix is notifying customers and channel partners about this potential security issue. This article is also available from the Citrix Knowledge Center at http://support.citrix.com/. Obtaining Support on This Issue If you require technical assistance with this issue, please contact Citrix Technical Support. Contact details for Citrix Technical Support are available at http://www.citrix.com/site/ss/supportContacts.asp. Reporting Security Vulnerabilities to Citrix Citrix welcomes input regarding the security of its products and considers any and all potential vulnerabilities seriously. If you would like to report a security issue to Citrix, please compose an e-mail to secure@citrix.com stating the exact version of the product in which the vulnerability was found and the steps needed to reproduce the vulnerability. This document applies to: XenClient XT 3 - --------------------------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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