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Category:   Application (Generic)  >   Xen Vendors:   Xen Project
Xen GICD.SGIR Register Bug Lets Local Guest Users Deny Service on the Host
SecurityTracker Alert ID:  1031746
SecurityTracker URL:
CVE Reference:   CVE-2015-0268   (Links to External Site)
Date:  Feb 12 2015
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 4.5 and after
Description:   A vulnerability was reported in Xen. A local user on the can cause denial of service conditions.

A local user on a guest operating system can write to the 'GICD.SGIR' register in the virtual interrupt controller to cause the host system to crash.

ARM-based systems using version 2 of the generic interrupt controller are affected.

x86-based systems are not affected.

Julien Grall reported this vulnerability.

Impact:   A local user on the guest system can cause the host system to crash.
Solution:   The vendor has issued a fix (xsa117.patch).

The vendor's advisory is available at:

Vendor URL: (Links to External Site)
Cause:   Access control error, State error
Underlying OS:  Linux (Any)

Message History:   None.

 Source Message Contents

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