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TI-2016-04681 Aliases CVE-2016-5403GHSA-w9gj-prpq-pxm9

The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS…

Priority LOW 25CWE-400Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 21 fixed, 2 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

Summary

The virtqueue_pop function in hw/virtio/virtio.c in QEMU allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by submitting requests without waiting for completion.

Why it matters now

EPSS 0.0052 44th percentileScored 2026-11-07
Fix Partial Red Hat: 11 advisoriesRed Hat: 21 fixed, 2 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 38

CPEVersionsRoleVendor
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*12.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:*5VulnerableOracle
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*6VulnerableOracle
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*7VulnerableOracle
cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:x86:*3.4VulnerableOracle
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*up to 2.6.0VulnerableQEMU
cpe:2.3:a:qemu:qemu:2.7.0:rc0:*:*:*:*:*:*2.7.0 rc0VulnerableQEMU
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:* Versions 12.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:oracle:linux:5:-:*:*:*:*:*:* Versions 5 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:* Versions 6 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:* Versions 7 Vulnerable ·Oracle
  • cpe:2.3:o:oracle:vm_server:3.4:*:*:*:*:*:x86:* Versions 3.4 Vulnerable ·Oracle
  • cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.6.0 Vulnerable ·QEMU
  • cpe:2.3:a:qemu:qemu:2.7.0:rc0:*:*:*:*:*:* Versions 2.7.0 rc0 Vulnerable ·QEMU
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
Show 28 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:*5.0VulnerableRed Hat
cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:*8VulnerableRed Hat
cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*9VulnerableRed Hat
cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:*3.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:*7.4VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:*7.5VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:*7.2VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:*7.3VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:*7.6VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:*7.7VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*6.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
  • cpe:2.3:a:redhat:openstack:5.0:*:*:*:*:*:*:* Versions 5.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:8:*:*:*:*:*:*:* Versions 8 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:virtualization:3.0:*:*:*:*:*:*:* Versions 3.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_aus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_eus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.2:*:*:*:*:*:*:* Versions 7.2 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.3:*:*:*:*:*:*:* Versions 7.3 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* Versions 7.6 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_server_tus:7.7:*:*:*:*:*:*:* Versions 7.7 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:* Versions 6.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat

Remediation

Red Hat 11 advisories

  • RHSA-2016:1943 Released 2016-09-27 · Red Hat rating Important
    kvm security update
    • Red Hat Enterprise Linux Desktop Multi OS (v. 5 client) kmod-kvm-83-276.el5_11, kmod-kvm-debug-83-276.el5_11, kvm-83-276.el5_11 +2
    • Red Hat Enterprise Linux Virtualization (v. 5 server) kmod-kvm-83-276.el5_11, kmod-kvm-debug-83-276.el5_11, kvm-83-276.el5_11 +2
  • RHSA-2016:1763 Released 2016-08-24 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 9.0 libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21, qemu-img-rhev-10:2.3.0-31.el7_2.21 +3
  • RHSA-2016:1756 Released 2016-08-24 · Red Hat rating Moderate
    qemu-kvm-rhev security and bug fix update
    • Red Hat OpenStack Platform 8.0 (Liberty) libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21, qemu-img-rhev-10:2.3.0-31.el7_2.21 +3
Show 8 more Red Hat advisories
  • RHSA-2016:1652 Released 2016-08-23 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 qemu-img-rhev-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-rhev-tools-2:0.12.1.2-2.491.el6_8.3
  • RHSA-2016:1653 Released 2016-08-23 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21, qemu-img-rhev-10:2.3.0-31.el7_2.21 +3
  • RHSA-2016:1654 Released 2016-08-23 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 libcacard-devel-rhev-10:2.3.0-31.el7_2.21, libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21 +4
  • RHSA-2016:1655 Released 2016-08-23 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 libcacard-devel-rhev-10:2.3.0-31.el7_2.21, libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21 +4
  • RHSA-2016:1607 Released 2016-08-12 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • RHEV-H and VDSM for 7 Hosts libcacard-devel-rhev-10:2.3.0-31.el7_2.21, libcacard-rhev-10:2.3.0-31.el7_2.21, libcacard-tools-rhev-10:2.3.0-31.el7_2.21 +4
  • RHSA-2016:1606 Released 2016-08-11 · Red Hat rating Moderate
    qemu-kvm security update
    • Red Hat Enterprise Linux Client (v. 7) libcacard-10:1.5.3-105.el7_2.7, qemu-img-10:1.5.3-105.el7_2.7, qemu-kvm-10:1.5.3-105.el7_2.7 +2
    • Red Hat Enterprise Linux Client Optional (v. 7) libcacard-devel-10:1.5.3-105.el7_2.7, libcacard-tools-10:1.5.3-105.el7_2.7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) libcacard-10:1.5.3-105.el7_2.7, libcacard-devel-10:1.5.3-105.el7_2.7, libcacard-tools-10:1.5.3-105.el7_2.7 +4
    • Red Hat Enterprise Linux Server (v. 7) libcacard-10:1.5.3-105.el7_2.7, qemu-img-10:1.5.3-105.el7_2.7, qemu-kvm-10:1.5.3-105.el7_2.7 +2
    • Red Hat Enterprise Linux Server Optional (v. 7) libcacard-10:1.5.3-105.el7_2.7, libcacard-10:1.5.3-105.el7_2.7.ppc, libcacard-devel-10:1.5.3-105.el7_2.7 +2
    • Red Hat Enterprise Linux Workstation (v. 7) libcacard-10:1.5.3-105.el7_2.7, qemu-img-10:1.5.3-105.el7_2.7, qemu-kvm-10:1.5.3-105.el7_2.7 +2
    • Red Hat Enterprise Linux Workstation Optional (v. 7) libcacard-devel-10:1.5.3-105.el7_2.7, libcacard-tools-10:1.5.3-105.el7_2.7
  • RHSA-2016:1585 Released 2016-08-09 · Red Hat rating Moderate
    qemu-kvm security update
    • Red Hat Enterprise Linux Desktop (v. 6) qemu-guest-agent-2:0.12.1.2-2.491.el6_8.3, qemu-img-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-2:0.12.1.2-2.491.el6_8.3 +1
    • Red Hat Enterprise Linux HPC Node (v. 6) qemu-guest-agent-2:0.12.1.2-2.491.el6_8.3, qemu-img-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-2:0.12.1.2-2.491.el6_8.3 +1
    • Red Hat Enterprise Linux Server (v. 6) qemu-guest-agent-2:0.12.1.2-2.491.el6_8.3, qemu-img-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-2:0.12.1.2-2.491.el6_8.3 +1
    • Red Hat Enterprise Linux Workstation (v. 6) qemu-guest-agent-2:0.12.1.2-2.491.el6_8.3, qemu-img-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-2:0.12.1.2-2.491.el6_8.3 +1
  • RHSA-2016:1586 Released 2016-08-09 · Red Hat rating Moderate
    qemu-kvm-rhev security update
    • RHEV Agents (vdsm) qemu-img-rhev-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.3, qemu-kvm-rhev-tools-2:0.12.1.2-2.491.el6_8.3

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix yet
RHEV Agents (vdsm)Fixed RHSA-2016:1586
RHEV-H and VDSM for 7 HostsFixed RHSA-2016:1607
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2016:1585
Red Hat Enterprise Linux Desktop Multi OS (v. 5 client)Fixed RHSA-2016:1943
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2016:1585
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed RHSA-2016:1652
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed RHSA-2016:1655
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed RHSA-2016:1654
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed RHSA-2016:1653
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2016:1585
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux Virtualization (v. 5 server)Fixed RHSA-2016:1943
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2016:1585
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2016:1606
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2016:1606
Red Hat OpenStack Platform 8.0 (Liberty)Fixed RHSA-2016:1756
Red Hat OpenStack Platform 9.0Fixed RHSA-2016:1763
Not affected: 1 product
  • Red Hat OpenStack Platform 10 (Newton)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-5403
  2. 2026-10-03 Alias added: GHSA-w9gj-prpq-pxm9

References

Patch 1

Advisory 18

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences