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Category:   Application (Generic)  >   Xen Vendors:   XenSource
Xen PV Bootloader Bug Lets Local Guest Users Crash the System
SecurityTracker Alert ID:  1027090
SecurityTracker URL:  http://securitytracker.com/id/1027090
CVE Reference:   CVE-2012-2625   (Links to External Site)
Updated:  May 22 2012
Original Entry Date:  May 22 2012
Impact:   Denial of service via local system
Exploit Included:  Yes  
Version(s): 4.1.2
Description:   A vulnerability was reported in Xen. A local user on the guest virtual machine can cause denial of service conditions.

A local user on the guest virtual machine can load a specially crafted bzip2 or lzma compressed kernel image to trigger a flaw in the pv bootloader and cause the target system to crash.

Xinli Niu reported this vulnerability.

Impact:   A local user on the guest virtual machine can cause the target system to crash.
Solution:   No solution was available at the time of this entry.
Vendor URL:  www.xen.org/ (Links to External Site)
Cause:   Input validation error, State error
Underlying OS:   Linux (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Jul 31 2012 (Red Hat Issues Fix) Xen PV Bootloader Bug Lets Local Guest Users Crash the System   (bugzilla@redhat.com)
Red Hat has issued a fix for Red Hat Enterprise Linux 5.



 Source Message Contents

Date:  Tue, 22 May 2012 20:30:53 +0000
Subject:  Xen


http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1817

> pv bootloader doesn't check the size of the bzip2 or lzma compressed kernel
 
 


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