CVE-2008-3687

Published: Aug 14, 2008Modified: Apr 23, 2026

6.8

Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability: 8.6 / Impact: 6.4

Source: NVD

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.

Affected (2)

Products: Xen: Xen, Xen Flask Module

Xen

2 products

Xen

Xen Flask Module

Configuration A

2 vulnerable

Vulnerable Software	Affected Versions
Xen Xen	Version 3.3
Xen Xen Flask Module	All versions

Related CWEs

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (18)

http://invisiblethingslab.com/bh08/part2.pdf

Source: cve@mitre.org

http://secunia.com/advisories/31561

Source: cve@mitre.org

http://theinvisiblethings.blogspot.com/2008/08/our-xen-0wning-trilogy-highlights.html

Source: cve@mitre.org

http://www.nabble.com/-PATCH--XSM--FLASK--Argument-handling-bugs-in-XSM:FLASK-to18536032.html

Source: cve@mitre.org

Patch

http://www.securityfocus.com/bid/30834

Source: cve@mitre.org

http://www.securitytracker.com/id?1020731

Source: cve@mitre.org

http://www.vupen.com/english/advisories/2008/2426

Source: cve@mitre.org

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

Source: cve@mitre.org

https://exchange.xforce.ibmcloud.com/vulnerabilities/44608

Source: cve@mitre.org

http://invisiblethingslab.com/bh08/part2.pdf