CVE-2008-3687 : Heap-based buffer overflow in the flask_security

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.

Published 2008-08-14 22:41:00

Updated 2025-04-09 00:30:58

Source MITRE

View at NVD, CVE.org

Vulnerability category: OverflowExecute code

Products affected by CVE-2008-3687

XEN » XEN » Version: 3.3
cpe:2.3:a:xen:xen:3.3:*:*:*:*:*:*:*
Matching versions
XEN » Xen Flask Module
cpe:2.3:a:xen:xen_flask_module:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2008-3687

EPSS FAQ

2.13%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 83 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2008-3687

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
6.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:P	8.6	6.4	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2008-3687

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.

Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2008-3687

Red Hat 2008-08-21

Not vulnerable. This issue did not affect the version of Xen hypervisor as shipped with Red Hat Enterprise Linux 5, as it does not support XSM.

References for CVE-2008-3687

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