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Category:   Application (Generic)  >   Xen Vendors:   Xen Project
Xen Debugging Assert Validation Flaw Lets Local Guest Users Deny Service on the Host
SecurityTracker Alert ID:  1027937
SecurityTracker URL:  http://securitytracker.com/id/1027937
CVE Reference:   CVE-2013-0154   (Links to External Site)
Date:  Jan 4 2013
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.2.x
Description:   A vulnerability was reported in Xen. A local user on the guest can cause denial of service conditions on the host.

A local administrative user on the PV guest can make a specially crafted hypercall to cause the target host hypervisor to crash.

Hypervisors built with debugging enabled are affected.

Systems running PV guests or HVM guests using stubdomains are affected.

Systems running HVM guests without stubdomains are not affected.

Impact:   A local administrative user on the guest can cause the target hypervisor to crash.
Solution:   The vendor has issued a patch (xsa37-4.2.patch).
Vendor URL:  www.xen.org/ (Links to External Site)
Cause:   Access control error
Underlying OS:  Linux (Any)

Message History:   None.


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