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Category:   Application (Generic)  >   Xen Vendors:   XenSource
Xen Netback Packet Processing Flaw Lets Local Guest Administrators Cause Denial of Service Conditions on the Host
SecurityTracker Alert ID:  1029949
SecurityTracker URL:  http://securitytracker.com/id/1029949
CVE Reference:   CVE-2014-2580   (Links to External Site)
Updated:  Mar 25 2014
Original Entry Date:  Mar 24 2014
Impact:   Denial of service via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Xen. A local user on the guest operating system can cause denial of service conditions on the host operating system.

A local administrative user on the guest operating system can send a specially crafted packet to netback to cause netback to disable the interface and cause the host system to crash.

Systems using Linux as the driver domain are affected.

Versions of Linux where netback uses NAPI are affected (e.g., 3.11 and 3.12-rc1 and later versions).

Both x86 and ARM systems are affected.

Torok Edwin reported this vulnerability.

Impact:   A local administrative user on the guest operating system can cause the target host system to crash.
Solution:   The vendor has issued a fix (xsa90.patch).
Vendor URL:  www.xen.org/ (Links to External Site)
Cause:   State error
Underlying OS:   Linux (Any)

Message History:   None.


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