SecurityTracker.com
    Home    |    View Topics    |    Search    |    Contact Us    |   

SecurityTracker
Archives


 


Category:   Application (Generic)  >   Citrix XenServer Vendors:   Citrix
(Citrix Issues Fix for Citrix XenServer) Xen Lets Local Guests Obtain Hypervisor Heap Memory Contents
SecurityTracker Alert ID:  1030603
SecurityTracker URL:  http://securitytracker.com/id/1030603
CVE Reference:   CVE-2014-4021   (Links to External Site)
Date:  Jul 17 2014
Impact:   Disclosure of system information, Disclosure of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 6.2 SP1 and prior versions
Description:   A vulnerability was reported in Xen. A local user can obtain potentially sensitive information from other domains. Citrix XenServer is affected.

The system does not properly control access to memory pages during memory cleanup for dying guest systems. A local user on a guest system can access information from guest or hypervisor memory, potentially including guest CPU register state and hypercall arguments.

Versions 3.1.x and prior have not been evaluated to determine if they are affected.

Jan Beulich reported this vulnerability.

Impact:   A local user on a guest system can access information from guest or hypervisor memory in certain cases.
Solution:   Citrix has issued hotfixes for Citrix XenServer.

The Citrix advisory is available at:

http://support.citrix.com/article/CTX140984

Vendor URL:  www.xen.org/ (Links to External Site)
Cause:   Access control error

Message History:   This archive entry is a follow-up to the message listed below.
Jun 18 2014 Xen Lets Local Guests Obtain Hypervisor Heap Memory Contents



 Source Message Contents



[Original Message Not Available for Viewing]


Go to the Top of This SecurityTracker Archive Page





Home   |    View Topics   |    Search   |    Contact Us

This web site uses cookies for web analytics. Learn More

Copyright 2020, SecurityGlobal.net LLC