CVE-2008-3687

Severity: medium (CVSS 6.8 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-08-14 · updated 2026-06-16
Weakness: CWE-119

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 products

xen: 3.3
Xen Flask Module: all versions

References

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

Get alerted when CVE-2008-3687 or the next vulnerability affects your stack