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Fencer Intel
high 8.8

CVE-2016-3710 json

The VGA module in QEMU improperly performs bounds checking on banked access to video memory, which allows local guest OS administrators to…

published 2016-05-11 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-4731

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits
0
none known

Summary

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.

Patch / fix

  • xen Debian 14, Debian 13, Debian 12 4.4.0-1
  • qemu Debian 14, Debian 13, Debian 12 1:2.6+dfsg-1

debian advisories DEBIAN-CVE-2016-3710

  • xen Ubuntu 14.04 LTS 4.4.2-0ubuntu0.14.04.6
  • qemu Ubuntu 14.04 LTS 2.0.0+dfsg-2ubuntu1.24
  • qemu Ubuntu 16.04 LTS 1:2.5+dfsg-5ubuntu10.1

ubuntu advisories UBUNTU-CVE-2016-3710

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kvm RHEL 5 VIRTUALIZATION 83-276.el5_11
  • kmod-kvm RHEL 5 VIRTUALIZATION 83-276.el5_11
  • kvm-tools RHEL 5 VIRTUALIZATION 83-276.el5_11
  • kvm-qemu-img RHEL 5 VIRTUALIZATION 83-276.el5_11
  • qemu-kvm RHEL 6 2:0.12.1.2-2.491.el6_8.1
  • qemu-img RHEL 6 2:0.12.1.2-2.491.el6_8.1
  • qemu-kvm-tools RHEL 6 2:0.12.1.2-2.491.el6_8.1
  • qemu-guest-agent RHEL 6 2:0.12.1.2-2.491.el6_8.1

red hat advisories RHSA-2016:1943RHSA-2016:0997RHSA-2016:1002RHSA-2016:1001RHSA-2016:1000RHSA-2016:1224

  • xen SLES 11 SP3-LTSS, SLE Point of Sale 11 SP3, OpenStack Cloud 5 +2 more 4.2.5_21-27.1
  • xen SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 4.4.4_07-37.1
  • xen SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 +1 more 4.5.3_08-17.1
  • kvm SLES for SAP 11 SP4, SLES 11 SP4 1.4.2-44.1
  • qemu SLES for SAP 12 SP1, SLES 12 SP1, SLED 12 SP1 2.3.1-14.1
  • kvm SLES 11 SP3-TERADATA, SLES 11 SP3-LTSS 1.4.2-46.1
  • qemu SLES for SAP 12, SLES 12, SLED 12 2.0.2-48.19.1
  • xen SLES for SAP 12, SLES 12-LTSS 4.4.4_04-22.22.2

suse advisories SUSE-SU-2016:2725-1SUSE-SU-2016:2533-1SUSE-SU-2016:2528-1SUSE-SU-2016:2100-1SUSE-SU-2016:2093-1SUSE-SU-2016:1785-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-3710 updated cvss 7.6

qemu: incorrect banked access bounds checking in vga module

  • Red Hat Enterprise Linux 5 kvm Red Hat Enterprise Linux 6 qemu-kvm-rhev Red Hat Enterprise Linux 7 qemu-kvm-rhev Red Hat OpenStack Platform 9 (Mitaka) qemu-img-rhev, qemu-kvm-rhev, libcacard-rhev, qemu-kvm-tools-rhev, libcacard-devel-rhev, libcacard-tools-rhev, +1 more
    affected: no fix available
  • Red Hat Enterprise Linux Client (v. 7) qemu-img 1.5.3-105.el7_2.4, qemu-kvm 1.5.3-105.el7_2.4, libcacard 1.5.3-105.el7_2.4, qemu-kvm-tools 1.5.3-105.el7_2.4, qemu-kvm-common 1.5.3-105.el7_2.4 Red Hat Enterprise Linux Client Optional (v. 7) libcacard-tools 1.5.3-105.el7_2.4 Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img 1.5.3-105.el7_2.4, qemu-kvm 1.5.3-105.el7_2.4, libcacard 1.5.3-105.el7_2.4, qemu-kvm-tools 1.5.3-105.el7_2.4, libcacard-tools 1.5.3-105.el7_2.4, qemu-kvm-common 1.5.3-105.el7_2.4
    fixed: vendor fix RHSA-2016:0724
  • Red Hat Enterprise Linux Desktop (v. 6) qemu-img 0.12.1.2-2.491.el6_8.1, qemu-kvm 0.12.1.2-2.491.el6_8.1, qemu-kvm-tools 0.12.1.2-2.491.el6_8.1, qemu-guest-agent 0.12.1.2-2.491.el6_8.1
    fixed: vendor fix RHSA-2016:0997
  • Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) kvm 83-276.el5_11, kmod-kvm 83-276.el5_11, kvm-tools 83-276.el5_11, kvm-qemu-img 83-276.el5_11
    fixed: vendor fix RHSA-2016:1943
  • Red Hat Enterprise Linux HPC Node (v. 6) qemu-img 0.12.1.2-2.491.el6_8.1, qemu-kvm 0.12.1.2-2.491.el6_8.1, qemu-kvm-tools 0.12.1.2-2.491.el6_8.1, qemu-guest-agent 0.12.1.2-2.491.el6_8.1
    fixed: vendor fix RHSA-2016:0997
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 qemu-img-rhev 0.12.1.2-2.491.el6_8.1, qemu-kvm-rhev 0.12.1.2-2.491.el6_8.1, qemu-kvm-rhev-tools 0.12.1.2-2.491.el6_8.1
    fixed: vendor fix RHSA-2016:1019
  • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.13, qemu-kvm-rhev 2.3.0-31.el7_2.13, libcacard-rhev 2.3.0-31.el7_2.13, qemu-kvm-tools-rhev 2.3.0-31.el7_2.13, libcacard-devel-rhev 2.3.0-31.el7_2.13, libcacard-tools-rhev 2.3.0-31.el7_2.13, +1 more
    fixed: vendor fix RHSA-2016:0999
  • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.13, qemu-kvm-rhev 2.3.0-31.el7_2.13, libcacard-rhev 2.3.0-31.el7_2.13, qemu-kvm-tools-rhev 2.3.0-31.el7_2.13, libcacard-devel-rhev 2.3.0-31.el7_2.13, libcacard-tools-rhev 2.3.0-31.el7_2.13, +1 more
    fixed: vendor fix RHSA-2016:1000
show 9 more
  • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-img-rhev 2.3.0-31.el7_2.13, qemu-kvm-rhev 2.3.0-31.el7_2.13, libcacard-rhev 2.3.0-31.el7_2.13, qemu-kvm-tools-rhev 2.3.0-31.el7_2.13, libcacard-tools-rhev 2.3.0-31.el7_2.13, qemu-kvm-common-rhev 2.3.0-31.el7_2.13
    fixed: vendor fix RHSA-2016:1001
  • Red Hat Enterprise Linux Server (v. 6) qemu-img 0.12.1.2-2.491.el6_8.1, qemu-kvm 0.12.1.2-2.491.el6_8.1, qemu-kvm-tools 0.12.1.2-2.491.el6_8.1, qemu-guest-agent 0.12.1.2-2.491.el6_8.1
    fixed: vendor fix RHSA-2016:0997
  • Red Hat Enterprise Linux Server (v. 7) qemu-img 1.5.3-105.el7_2.4, qemu-kvm 1.5.3-105.el7_2.4, libcacard 1.5.3-105.el7_2.4, qemu-kvm-tools 1.5.3-105.el7_2.4, qemu-kvm-common 1.5.3-105.el7_2.4 Red Hat Enterprise Linux Server Optional (v. 7) libcacard 1.5.3-105.el7_2.4, libcacard-tools 1.5.3-105.el7_2.4
    fixed: vendor fix RHSA-2016:0724
  • Red Hat Enterprise Linux Virtualization (v. 5 server) kvm 83-276.el5_11, kmod-kvm 83-276.el5_11, kvm-tools 83-276.el5_11, kvm-qemu-img 83-276.el5_11
    fixed: vendor fix RHSA-2016:1943
  • Red Hat Enterprise Linux Workstation (v. 6) qemu-img 0.12.1.2-2.491.el6_8.1, qemu-kvm 0.12.1.2-2.491.el6_8.1, qemu-kvm-tools 0.12.1.2-2.491.el6_8.1, qemu-guest-agent 0.12.1.2-2.491.el6_8.1
    fixed: vendor fix RHSA-2016:0997
  • Red Hat Enterprise Linux Workstation (v. 7) qemu-img 1.5.3-105.el7_2.4, qemu-kvm 1.5.3-105.el7_2.4, libcacard 1.5.3-105.el7_2.4, qemu-kvm-tools 1.5.3-105.el7_2.4, qemu-kvm-common 1.5.3-105.el7_2.4 Red Hat Enterprise Linux Workstation Optional (v. 7) libcacard-tools 1.5.3-105.el7_2.4
    fixed: vendor fix RHSA-2016:0724
  • Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev 2.3.0-31.el7_2.13, qemu-kvm-rhev 2.3.0-31.el7_2.13, libcacard-rhev 2.3.0-31.el7_2.13, qemu-kvm-tools-rhev 2.3.0-31.el7_2.13, libcacard-tools-rhev 2.3.0-31.el7_2.13, qemu-kvm-common-rhev 2.3.0-31.el7_2.13
    fixed: vendor fix RHSA-2016:1002
  • Red Hat RHEV Agents (vdsm) qemu-img-rhev 0.12.1.2-2.479.el6_7.5, qemu-kvm-rhev 0.12.1.2-2.479.el6_7.5, qemu-kvm-rhev-tools 0.12.1.2-2.479.el6_7.5
    fixed: vendor fix RHSA-2016:1224
  • Red Hat RHEV-H and VDSM for 7 Hosts qemu-img-rhev 2.3.0-31.el7_2.13, qemu-kvm-rhev 2.3.0-31.el7_2.13, libcacard-rhev 2.3.0-31.el7_2.13, qemu-kvm-tools-rhev 2.3.0-31.el7_2.13, libcacard-devel-rhev 2.3.0-31.el7_2.13, libcacard-tools-rhev 2.3.0-31.el7_2.13, +1 more
    fixed: vendor fix RHSA-2016:0725

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.92% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.