CVE-2016-3710
published 2016-05-11CVE-2016-3710: The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary…
PriorityP345high8.8CVSS 3.1
AVLACLPRLUINSCCHIHAH
EPSS
0.92%
56.2th percentile
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
Affected
62 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| citrix | citrix_adm | — | — |
| citrix | citrix_hypervisor | — | — |
| citrix | citrix_virtual_apps_and_desktops | — | — |
| citrix | endpoint_management | — | — |
| citrix | netscaler_adc | — | — |
| citrix | netscaler_gateway | — | — |
| citrix | xenserver | <= 7.0 | — |
| citrix | xenserver | — | — |
| debian | debian_linux | — | — |
| debian | qemu | < qemu 1:2.6+dfsg-1 (bookworm) | qemu 1:2.6+dfsg-1 (bookworm) |
| debian | xen | < qemu 1:2.6+dfsg-1 (bookworm) | qemu 1:2.6+dfsg-1 (bookworm) |
| hp | helion_openstack | — | — |
| hp | helion_openstack | — | — |
| hp | helion_openstack | — | — |
| hp | helion_openstack | — | — |
| oracle | linux | — | — |
| oracle | linux | — | — |
| oracle | linux | — | — |
| oracle | vm_server | — | — |
| oracle | vm_server | — | — |
| oracle | vm_server | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
osv8.8HIGH
vendor_debian8.8HIGH
vendor_redhat8.8HIGH
vendor_ubuntu5.0MEDIUM
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GHSA
GHSA-p6hq-65m2-r4jg: The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arb
ghsa_unreviewed·2022-05-13
CVE-2016-3710 [HIGH] CWE-119 GHSA-p6hq-65m2-r4jg: The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arb
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
OSV
qemu, qemu-kvm vulnerabilities
osv·2016-05-12·CVSS 5.0
CVE-2016-2391 [MEDIUM] qemu, qemu-kvm vulnerabilities
qemu, qemu-kvm vulnerabilities
Zuozhi Fzz discovered that QEMU incorrectly handled USB OHCI emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2016-2391)
Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2016-2392)
Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service, or possibly leak
host memory bytes. (CVE-2016-2538)
Hongke Yang discovered that QEMU incorrectly handled NE2000 emulation
support. A priv
OSV
CVE-2016-3710: The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arb
osv·2016-05-11·CVSS 8.8
CVE-2016-3710 [HIGH] CVE-2016-3710: The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arb
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
Ubuntu
QEMU vulnerabilities
vendor_ubuntu·2016-05-12·CVSS 5.0
CVE-2016-2391 [MEDIUM] QEMU vulnerabilities
Title: QEMU vulnerabilities
Summary: Several security issues were fixed in QEMU.
Zuozhi Fzz discovered that QEMU incorrectly handled USB OHCI emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2016-2391)
Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2016-2392)
Qinghao Tang discovered that QEMU incorrectly handled USB Net emulation
support. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service, or possibly leak
host memory bytes. (CVE-2016-2538)
Hongke Yang discovered that QEMU i
Red Hat
qemu: incorrect banked access bounds checking in vga module
vendor_redhat·2016-05-09·CVSS 8.8
CVE-2016-3710 [HIGH] qemu: incorrect banked access bounds checking in vga module
qemu: incorrect banked access bounds checking in vga module
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
An out-of-bounds read/write access flaw was found in the way QEMU's VGA emulation with VESA BIOS Extensions (VBE) support performed read/write operations using I/O port methods. A privileged guest user could use this flaw to execute arbitrary code on the host with the privileges of the host's QEMU process.
Package: kvm (Red Hat Enterprise Linux 5) - Affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 6) - Affected
Package: qemu-kvm-rhev (Red Hat Enterprise Linux 7
Debian
CVE-2016-3710: qemu - The VGA module in QEMU improperly performs bounds checking on banked access to v...
vendor_debian·2016·CVSS 8.8
CVE-2016-3710 [HIGH] CVE-2016-3710: qemu - The VGA module in QEMU improperly performs bounds checking on banked access to v...
The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to execute arbitrary code on the host by changing access modes after setting the bank register, aka the "Dark Portal" issue.
Scope: local
bookworm: resolved (fixed in 1:2.6+dfsg-1)
bullseye: resolved (fixed in 1:2.6+dfsg-1)
forky: resolved (fixed in 1:2.6+dfsg-1)
sid: resolved (fixed in 1:2.6+dfsg-1)
trixie: resolved (fixed in 1:2.6+dfsg-1)
Citrix
Citrix Security Bulletin CTX212736
vendor_citrix·CVSS 8.8
CVE-2016-3710 [HIGH] Citrix Security Bulletin CTX212736
Citrix Security Bulletin CTX212736
CVE References: CVE-2016-3710, CVE-2016-3712, 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.
Bugzilla
CVE-2016-3710 xen: qemu: incorrect banked access bounds checking in vga module [fedora-all]
bugzilla·2016-05-09·CVSS 8.8
CVE-2016-3710 [HIGH] CVE-2016-3710 xen: qemu: incorrect banked access bounds checking in vga module [fedora-all]
CVE-2016-3710 xen: qemu: incorrect banked access bounds checking in vga module [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supporte
Bugzilla
CVE-2016-3712 qemu: qemu-kvm: Out-of-bounds read when creating weird vga screen surface [fedora-all]
bugzilla·2016-05-09·CVSS 5.5
CVE-2016-3712 [MEDIUM] CVE-2016-3712 qemu: qemu-kvm: Out-of-bounds read when creating weird vga screen surface [fedora-all]
CVE-2016-3712 qemu: qemu-kvm: Out-of-bounds read when creating weird vga screen surface [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple
Bugzilla
CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module [fedora-all]
bugzilla·2016-05-09·CVSS 8.8
CVE-2016-3710 [HIGH] CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module [fedora-all]
CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of Fedora.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported ver
Bugzilla
CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module
bugzilla·2016-04-28·CVSS 8.8
CVE-2016-3710 [HIGH] CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module
CVE-2016-3710 qemu: incorrect banked access bounds checking in vga module
Qemu emulator built with VGA emulation with VESA BIOS Extensions(VBE) support is vulnerable to an OOB r/w access issue. It could occur while doing VGA r/w operations via i/o port methods.
A privileged guest user could use this flaw to potentially execute arbitrary code, with privileges of the Qemu process on the host.
Upstream patch:
-> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01197.html
Reference:
-> http://www.openwall.com/lists/oss-security/2016/05/09/3
Discussion:
Acknowledgments:
Name: Wei Xiao (360.cn Marvel Team), Qinghao Tang (360.cn Marvel Team)
---
*** Bug 1334178 has been marked as a duplicate of this bug. ***
---
Public via:
http://xenbits.xen.org/xsa/advisory-179.html
---
Cr
Bugzilla
CVE-2016-3712 qemu-kvm: Out-of-bounds read when creating weird vga screen surface
bugzilla·2016-03-17·CVSS 5.5
CVE-2016-3712 [MEDIUM] CVE-2016-3712 qemu-kvm: Out-of-bounds read when creating weird vga screen surface
CVE-2016-3712 qemu-kvm: Out-of-bounds read when creating weird vga screen surface
Qemu VGA module allows guest to edit certain registers in 'vbe' and 'vga'
modes. ie. guest could set certain 'VGA' registers while in 'VBE' mode. This
leads to potential integer overflow or OOB read access issues in Qemu,
A privileged guest user could use this flaw to crash the Qemu process on the
host resulting in DoS.
Upstream patches:
-> https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01198.html
Reference:
-> http://www.openwall.com/lists/oss-security/2016/05/09/4
Discussion:
Acknowledgments:
Name: Zuozhi Fzz (Alibaba Inc.)
---
Created attachment 1137419
Backtrace report
---
Statement:
(none)
---
Public via:
http://xenbits.xen.org/xsa/advisory-179.html
---
Created xen tracking bug
http://rhn.redhat.com/errata/RHSA-2016-0724.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0725.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0997.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0999.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1000.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1001.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1002.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1019.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1943.htmlhttp://support.citrix.com/article/CTX212736http://www.debian.org/security/2016/dsa-3573http://www.openwall.com/lists/oss-security/2016/05/09/3http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlhttp://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlhttp://www.securityfocus.com/bid/90316http://www.securitytracker.com/id/1035794http://www.ubuntu.com/usn/USN-2974-1http://xenbits.xen.org/xsa/advisory-179.htmlhttps://access.redhat.com/errata/RHSA-2016:1224https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164862https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01197.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0724.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0725.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0997.htmlhttp://rhn.redhat.com/errata/RHSA-2016-0999.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1000.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1001.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1002.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1019.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1943.htmlhttp://support.citrix.com/article/CTX212736http://www.debian.org/security/2016/dsa-3573http://www.openwall.com/lists/oss-security/2016/05/09/3http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlhttp://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.htmlhttp://www.securityfocus.com/bid/90316http://www.securitytracker.com/id/1035794http://www.ubuntu.com/usn/USN-2974-1http://xenbits.xen.org/xsa/advisory-179.htmlhttps://access.redhat.com/errata/RHSA-2016:1224https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05164862https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg01197.html
2016-05-11
Published