Vulnerability CVE-2008-3687
Published: 2008-08-14   Modified: 2012-02-12

Description:
Heap-based buffer overflow in the flask_security_label function in Xen 3.3, when compiled with the XSM:FLASK module, allows unprivileged domain users (domU) to execute arbitrary code via the flask_op hypercall.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
XEN -> XEN 
XEN -> Xen flask module 

 References:
http://www.nabble.com/-PATCH--XSM--FLASK--Argument-handling-bugs-in-XSM:FLASK-to18536032.html
http://xforce.iss.net/xforce/xfdb/44608
http://xenbits.xensource.com/xen-3.3-testing.hg?rev/fa66b33f975a
http://www.vupen.com/english/advisories/2008/2426
http://www.securitytracker.com/id?1020731
http://www.securityfocus.com/bid/30834
http://theinvisiblethings.blogspot.com/2008/08/our-xen-0wning-trilogy-highlights.html
http://secunia.com/advisories/31561
http://invisiblethingslab.com/bh08/part2.pdf
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