CVE-2016-9637

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Summary

CVECVE-2016-9637
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-02-17 02:59:13 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionThe (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as a device model within Xen, might allow local x86 HVM guest OS administrators to gain qemu process privileges via vectors involving an out-of-range ioport access.

Risk And Classification

Primary CVSS: v3.0 7.5 HIGH from [email protected]

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

Problem Types: CWE-264 | n/a

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary7.5HIGHCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
2.0[email protected]Primary3.7AV:L/AC:H/Au:N/C:P/I:P/A:P

CVSS v3.0 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
High
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:L/AC:H/Au:N/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Citrix Xenserver 6.0.2 All All All
Application Citrix Xenserver 6.2.0 sp1 All All
Application Citrix Xenserver 6.5 sp1 All All
Application Citrix Xenserver 7.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Xen ioport Array Overflow Lets Local Administrative Users on a Guest System Gain Elevated Privileges on the QEMU Process - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
CVE-2016-9637 - Citrix XenServer Security Update af854a3a-2127-422b-91ae-364da2661108 support.citrix.com
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
Xen: Multiple vulnerabilities (GLSA 201612-56) — Gentoo security af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
Xen CVE-2016-9637 Privilege Escalation Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
[SECURITY] [DLA 1270-1] xen security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
XSA-199 - Xen Security Advisories af854a3a-2127-422b-91ae-364da2661108 xenbits.xen.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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