CVE-2016-6259

N/A
Published: August 2, 2016 at 04:00 PM UTC
Updated: June 17, 2026 at 12:50 AM UTC
2 products affected across 2 vendorsXenXenServer

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Severity
N/A
Exploit prediction
EPSS 0.6%

Description

Xen 4.5.x through 4.7.x do not implement Supervisor Mode Access Prevention (SMAP) whitelisting in 32-bit exception and event delivery, which allows local 32-bit PV guest OS kernels to cause a denial of service (hypervisor and VM crash) by triggering a safety check.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (6)

x_refsource_CONFIRMVendor Advisory
http://support.citrix.com/article/CTX214954
VDB Entryx_refsource_BIDThird Party Advisory
http://www.securityfocus.com/bid/92130
VDB Entryx_refsource_SECTRACKThird Party Advisory
http://www.securitytracker.com/id/1036447
x_refsource_CONFIRMMailing ListPatch
http://xenbits.xen.org/xsa/advisory-183.html
x_refsource_CONFIRMMitigationPatch
http://xenbits.xen.org/xsa/xsa183-4.6.patch

CVSS

Confidentiality
NONE
Integrity
NONE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-20

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