CVE-2016-9637
published 2017-02-17CVE-2016-9637: The (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…
PriorityP434high7.5CVSS 3.0
AVLACHPRHUINSCCHIHAH
EPSS
0.36%
28.7th percentile
The (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.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| citrix | citrix_adm | — | — |
| citrix | citrix_hypervisor | — | — |
| citrix | citrix_virtual_apps_and_desktops | — | — |
| citrix | endpoint_management | — | — |
| citrix | netscaler_adc | — | — |
| citrix | netscaler_gateway | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| citrix | xenserver | — | — |
| debian | qemu | < xen 4.4.0-1 (bookworm) | xen 4.4.0-1 (bookworm) |
| debian | xen | < xen 4.4.0-1 (bookworm) | xen 4.4.0-1 (bookworm) |
| xen | xen | >= 0 < 4.4.0-1 | 4.4.0-1 |
| xen | xen | >= 0 < 4.4.0-1 | 4.4.0-1 |
| xen | xen | >= 0 < 4.4.0-1 | 4.4.0-1 |
| xen | xen | >= 0 < 4.4.0-1 | 4.4.0-1 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
nvdv2.03.7LOWAV:L/AC:H/Au:N/C:P/I:P/A:P
osv7.5HIGH
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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GHSA
GHSA-5m8h-4qv2-6hhp: The (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 administ
ghsa_unreviewed·2022-05-14
CVE-2016-9637 [HIGH] GHSA-5m8h-4qv2-6hhp: The (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 administ
The (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.
OSV
CVE-2016-9637: The (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 administ
osv·2017-02-17·CVSS 7.5
CVE-2016-9637 [HIGH] CVE-2016-9637: The (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 administ
The (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.
Red Hat
Xen: qemu ioport out-of-bounds array access (XSA-199)
vendor_redhat·2016-12-06·CVSS 7.5
CVE-2016-9637 [HIGH] CWE-125 Xen: qemu ioport out-of-bounds array access (XSA-199)
Xen: qemu ioport out-of-bounds array access (XSA-199)
The (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.
An out of bounds array access issue was found in the Xen virtual machine monitor, built with the QEMU ioport support. It could occur while doing ioport read/write operations, if guest was to supply a 32bit address parameter. A privileged guest user/process could use this flaw to potentially escalate their privileges on a host.
Package: kvm (Red Hat Enterprise Linux 5) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 6) - Not affected
Package: qemu-kvm (Red Hat Enterprise Linux 7) - No
Debian
CVE-2016-9637: qemu - The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as ...
vendor_debian·2016·CVSS 7.5
CVE-2016-9637 [HIGH] CVE-2016-9637: qemu - The (1) ioport_read and (2) ioport_write functions in Xen, when qemu is used as ...
The (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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
Citrix
Citrix Security Bulletin CTX219136
vendor_citrix·CVSS 7.5
CVE-2016-9637 [HIGH] Citrix Security Bulletin CTX219136
Citrix Security Bulletin CTX219136
CVE References: CVE-2016-9637, CVE-2025-12101, CVE-2025-62626, CVE-2026-23554, CVE-2026-3055, CVE-2026-4368, CVE-2026-4397
Affected Products: Citrix ADM, Citrix Hypervisor, Citrix Virtual Apps and Desktops, Endpoint Management, NetScaler ADC, NetScaler Gateway, XenServer
No detection rules found.
No public exploits indexed.
http://rhn.redhat.com/errata/RHSA-2016-2963.htmlhttp://www.securityfocus.com/bid/94699http://www.securitytracker.com/id/1037397http://xenbits.xen.org/xsa/advisory-199.htmlhttps://lists.debian.org/debian-lts-announce/2018/02/msg00005.htmlhttps://security.gentoo.org/glsa/201612-56https://support.citrix.com/article/CTX219136http://rhn.redhat.com/errata/RHSA-2016-2963.htmlhttp://www.securityfocus.com/bid/94699http://www.securitytracker.com/id/1037397http://xenbits.xen.org/xsa/advisory-199.htmlhttps://lists.debian.org/debian-lts-announce/2018/02/msg00005.htmlhttps://security.gentoo.org/glsa/201612-56https://support.citrix.com/article/CTX219136
2017-02-17
Published