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Category:   Application (Generic)  >   Xen Vendors:   Xen Project
Xen Buffer Overflow in XSM:Flask flask_op() May Let Local Users Gain Elevated Privileges
SecurityTracker Alert ID:  1020731
SecurityTracker URL:  http://securitytracker.com/id/1020731
CVE Reference:   CVE-2008-3687   (Links to External Site)
Updated:  Aug 28 2008
Original Entry Date:  Aug 22 2008
Impact:   Execution of arbitrary code via local system, User access via local system
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 3.3
Description:   A vulnerability was reported in Xen. A local user can obtain elevated privileges on the target system.

A local user can supply specially crafted arguments to the flask_op() hypercall of the XSM:Flask module to trigger a buffer overflow and potentially execute arbitrary code on the target system.

Rafal Wojtczuk of McAfee reported this vulnerability.

Impact:   A local user may be able to obtain elevated privileges on the target system.
Solution:   The vendor has issued a source code fix, available at:

http://xenbits.xensource.com/xen-3.3-testing.hg?rev/fa66b33f975a

Vendor URL:  xensource.com/ (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.


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