Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2012.1150 Citrix XenServer Multiple Security Updates 6 December 2012 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Citrix XenServer Publisher: Citrix Operating System: Windows Impact/Access: Increased Privileges -- Existing Account Denial of Service -- Existing Account Access Confidential Data -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2012-5515 CVE-2012-5514 CVE-2012-5513 CVE-2012-5512 CVE-2012-5511 CVE-2012-5510 Reference: ESB-2012.1144 Original Bulletin: http://support.citrix.com/article/CTX135777 - --------------------------BEGIN INCLUDED TEXT-------------------- Citrix XenServer Multiple Security Updates Document ID: CTX135777 Created On: Dec 4, 2012 Updated On: Dec 4, 2012 Severity: High Description of Problem A number of security vulnerabilities have been identified in Citrix XenServer. These vulnerabilities affect all currently supported versions of Citrix XenServer up to and including version 6.1. The following vulnerabilities have been addressed: Grant table version switch list corruption vulnerability (CVE-2012-5510) Several HVM operations do not validate the range of their inputs (CVE-2012-5511) HVMOP_get_mem_access crash / HVMOP_set_mem_access information leak (CVE-2012-5512) XENMEM_exchange may overwrite hypervisor memory (CVE-2012-5513) Missing unlock in guest_physmap_mark_populate_on_demand() (CVE-2012-5514) Several memory hypercall operations allow invalid extent order values (CVE-2012-5515) What Customers Should Do Citrix is in the process of releasing hotfixes to address these issues in all supported versions and update levels of Citrix XenServer. These hotfixes, when available, may be downloaded from the locations below. Citrix strongly recommends that customers using Citrix XenServer identify and apply the hotfixes that relate to their deployed versions: Citrix XenServer 6.1: CTX135709 - Hotfix XS61E006 - For XenServer 6.1.0 Citrix XenServer 6.0.2: CTX135707 - Hotfix XS602E016 - For XenServer 6.0.2 Citrix XenServer 6.0.2 CC: Customers using Citrix XenServer 6.0.2 in the Common Criteria evaluated configuration should apply the following hotfix: CTX135708 - [Document Not Found] Citrix XenServer 6.0.0: CTX135706 - Hotfix XS60E024 - For XenServer 6.0 Citrix XenServer 5.6 Service Pack 2: CTX135705 - Hotfix XS56ESP2022 - For XenServer 5.6 Service Pack 2 Citrix XenServer 5.6 Feature Pack 1: CTX135704 - Hotfix XS56EFP1014 - For XenServer 5.6 Feature Pack 1 Citrix XenServer 5.6: CTX135702 - Hotfix XS56E016 - For XenServer 5.6 Citrix XenServer 5.6 CC: Customers using Citrix XenServer 5.6 in the Common Criteria evaluated configuration should apply the following hotfix: CTX135703 - [Document Not Found] Citrix XenServer 5.5 Update 2: CTX135701 - Hotfix XS55EU2014 - For XenServer 5.5 Update 2 Citrix XenServer 5.0 Update 3: CTX135699 - Hotfix XS50EU3014 - For XenServer 5.0 Update 3 Customers using Citrix CloudPlatform, previously known as Citrix CloudStack, that use XenServer are recommended to apply the hotfix relevant to their version of XenServer. 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: XenServer 5.0 Update 3 XenServer 5.5 XenServer 5.6 XenServer 5.6 Common Criteria XenServer 5.6 FP 1 XenServer 5.6 SP 2 XenServer 6.0 XenServer 6.0.2 XenServer 6.0.2 Common Criteria XenServer 6.1.0 - --------------------------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). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBUL/0Me4yVqjM2NGpAQJxUw/8CFMifmGVzDm91BMGYDJ9K3sP59+wqrnG 6WbMuWwDK0vA3AxwEfvCr2YgJ+5dijuuX7N3l1T4IQoYtDz10TXBZtfPuYHmQ2tF x0Wikleacfss+XE5N6jQA82nIM/sXQyfv66yeNeo9FW2/Sn7E3KbpToWSmXG6e/7 Ow05PWNbWF1Yb+7YeLmf39R0fTIYVxbm47igxmYzOBk4pWmLDget9YLSwjodi9bR gNGtpwlzyhXAL9gkFrJ2nY4N6hN8VRKkvYxF/SW3+1/jk5EVDVd21TE1jOtVEglP cPYhNgV1YfvLzEJzBooM9ekuf03yjN8O/6hUHs5ZCo8Nmb9xVsZ15QiLCZvzHsgo UBoJcia0Bk1SwHUDFYAj3QI2HTW2cBq3vRH5biGOG4d8D0LM70RSPZyVD9+0EdqA 65jZ1mwfFfhNn10PGVD3CfmhLaXk/cFvVxCtD0/zf2UlYn30FJIXdB4jPT/bWs/0 yKME/ZbDFJ7KWxOMi+mIDCJhcCBx7T6QeTj+F8cJVtzdkU77PN9kel86Ca5Yctnj IpdUiOvF2Zsvrh/+r6ByWitsr95smyuLEalCxv51HmdCJP7IAvESY7DzWLuGJMWh LfptRynYPiZwNS8/xwxnUdI5M4vdmX6Fm7y1Vs8X78Rbx94xkEc+xvF878DYv8PU AzFtD2obK/g= =8HW4 -----END PGP SIGNATURE-----