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Category:   Application (Generic)  >   Xen Vendors:   XenSource
Xen XSETBV Exception Handling Error Lets Local Guest Users Deny Service on the Host System
SecurityTracker Alert ID:  1028613
SecurityTracker URL:  http://securitytracker.com/id/1028613
CVE Reference:   CVE-2013-2078   (Links to External Site)
Date:  Jun 3 2013
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.0 and later
Description:   A vulnerability was reported in Xen. A local user on a guest domain can cause denial of service conditions on the host.

The hypervisor does not properly validate XSETBV instructions. A local user on a guest domain can cause the target host system to crash.

Impact:   A local user on a guest domain can cause the host to crash.
Solution:   The vendor has issued a fix (xsa54.patch).
Vendor URL:  www.xen.org/ (Links to External Site)
Cause:   Exception handling error
Underlying OS:   Linux (Any)

Message History:   None.


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