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TI-2016-07824 Aliases CVE-2016-9603GHSA-49mx-v59p-m55m

Heap-based buffer overflow in Qemu:

Priority MEDIUM 50CWE-122Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 18 fixed, 1 without a fix

Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-122 and the CVSS impact.

Summary

A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.

Why it matters now

EPSS 0.04448 91st percentileScored 2026-11-07
Fix Partial Red Hat: 11 advisoriesRed Hat: 18 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
QEMUQemu:2.9—No fix listedCNA
  • Qemu: VendorQEMU Affected 2.9 Fixed in — No fix listed CNA

CPE configurations NVD · 24

CPEVersionsRoleVendor
cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*before 2.9.0VulnerableQEMU
cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:*6.0.2VulnerableCitrix
cpe:2.3:a:citrix:xenserver:6.2.0:sp1:*:*:*:*:*:*6.2.0 sp1VulnerableCitrix
cpe:2.3:a:citrix:xenserver:6.5:sp1:*:*:*:*:*:*6.5 sp1VulnerableCitrix
cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:*7.0VulnerableCitrix
cpe:2.3:a:citrix:xenserver:7.1:*:*:*:*:*:*:*7.1VulnerableCitrix
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:qemu:qemu:*:*:*:*:*:*:*:* Versions before 2.9.0 Vulnerable ·QEMU
  • cpe:2.3:a:citrix:xenserver:6.0.2:*:*:*:*:*:*:* Versions 6.0.2 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:xenserver:6.2.0:sp1:*:*:*:*:*:* Versions 6.2.0 sp1 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:xenserver:6.5:sp1:*:*:*:*:*:* Versions 6.5 sp1 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:xenserver:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Citrix
  • cpe:2.3:a:citrix:xenserver:7.1:*:*:*:*:*:*:* Versions 7.1 Vulnerable ·Citrix
  • 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
Show 14 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:redhat:openstack:9:*:*:*:*:*:*:*9VulnerableRed Hat
cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:*10VulnerableRed Hat
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
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:7.3:*:*:*:*:*:*:*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_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_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:9:*:*:*:*:*:*:* Versions 9 Vulnerable ·Red Hat
  • cpe:2.3:a:redhat:openstack:10:*:*:*:*:*:*:* Versions 10 Vulnerable ·Red Hat
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • 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:7.3:*:*:*:*:*:*:* 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_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_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-2017:1441 Released 2017-06-14 · Red Hat rating Important
    qemu-kvm-rhev security and bug fix update
    • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3
  • RHSA-2017:1206 Released 2017-05-09 · Red Hat rating Important
    qemu-kvm security update
    • Red Hat Enterprise Linux Desktop (v. 6) qemu-guest-agent-2:0.12.1.2-2.503.el6_9.3, qemu-img-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-2:0.12.1.2-2.503.el6_9.3 +1
    • Red Hat Enterprise Linux HPC Node (v. 6) qemu-guest-agent-2:0.12.1.2-2.503.el6_9.3, qemu-img-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-2:0.12.1.2-2.503.el6_9.3 +1
    • Red Hat Enterprise Linux Server (v. 6) qemu-guest-agent-2:0.12.1.2-2.503.el6_9.3, qemu-img-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-2:0.12.1.2-2.503.el6_9.3 +1
    • Red Hat Enterprise Linux Workstation (v. 6) qemu-guest-agent-2:0.12.1.2-2.503.el6_9.3, qemu-img-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-2:0.12.1.2-2.503.el6_9.3 +1
  • RHSA-2017:1205 Released 2017-05-09 · Red Hat rating Important
    qemu-kvm-rhev security update
    • RHEV Agents (vdsm) qemu-img-rhev-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3, qemu-kvm-rhev-tools-2:0.12.1.2-2.503.el6_9.3
Show 8 more Red Hat advisories
  • RHSA-2017:0988 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0987 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm security update
    • Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-126.el7_3.6, qemu-kvm-10:1.5.3-126.el7_3.6, qemu-kvm-common-10:1.5.3-126.el7_3.6 +1
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-126.el7_3.6, qemu-kvm-10:1.5.3-126.el7_3.6, qemu-kvm-common-10:1.5.3-126.el7_3.6 +1
    • Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-126.el7_3.6, qemu-kvm-10:1.5.3-126.el7_3.6, qemu-kvm-common-10:1.5.3-126.el7_3.6 +1
    • Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-126.el7_3.6, qemu-kvm-10:1.5.3-126.el7_3.6, qemu-kvm-common-10:1.5.3-126.el7_3.6 +1
  • RHSA-2017:0985 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security, bug fix, and enhancement update
    • RHEV-H and VDSM for 7 Hosts qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
    • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0980 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0981 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0982 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0983 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1
  • RHSA-2017:0984 Released 2017-04-18 · Red Hat rating Important
    qemu-kvm-rhev security update
    • Red Hat OpenStack Platform 9.0 qemu-img-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-common-rhev-10:2.6.0-28.el7_3.9, qemu-kvm-rhev-10:2.6.0-28.el7_3.9 +1

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix yet
RHEV Agents (vdsm)Fixed RHSA-2017:1205
RHEV-H and VDSM for 7 HostsFixed RHSA-2017:0985
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2017:0987
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2017:0987
Red Hat Enterprise Linux Desktop (v. 6)Fixed RHSA-2017:1206
Red Hat Enterprise Linux HPC Node (v. 6)Fixed RHSA-2017:1206
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6Fixed RHSA-2017:1441
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7Fixed RHSA-2017:0980
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7Fixed RHSA-2017:0981
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7Fixed RHSA-2017:0982
Red Hat Enterprise Linux Server (v. 6)Fixed RHSA-2017:1206
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2017:0987
Red Hat Enterprise Linux Workstation (v. 6)Fixed RHSA-2017:1206
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2017:0987
Red Hat OpenStack Platform 10.0Fixed RHSA-2017:0988
Red Hat OpenStack Platform 8.0 (Liberty)Fixed RHSA-2017:0983
Red Hat OpenStack Platform 9.0Fixed RHSA-2017:0984
Red Hat Virtualization 4 Management Agent for RHEL 7 HostsFixed RHSA-2017:0985
Not affected: 2 products
  • Red Hat Enterprise Linux 5
  • Red Hat OpenStack Platform 11 (Ocata)

Timeline

  1. 2026-10-02 Threatist record created from CVE-2016-9603
  2. 2026-10-03 Alias added: GHSA-49mx-v59p-m55m

References

Advisory 15

Other 1

  • TI-2024-16148 QEMU before 8.2.0 has an integer underflow, and resultant buffer overflow, via a TI… CVSS 3.1HIGH 8.8
  • TI-2022-02736 Uncontrolled resource consumption in QEMU CVSS 3.1HIGH 7.8
  • TI-2023-02681 Qemu: 9pfs: improper access control on special files CVSS 3.1HIGH 7.1
  • TI-2019-09678 The QMP migrate command in QEMU version 4.0.0 and earlier is vulnerable to OS command… CVSS 3.0CRITICAL 9.8
  • TI-2024-03326 Qemu-kvm: net: assertion failure in update_sctp_checksum() CVSS 3.1MEDIUM 5.5
  • TI-2023-22631 QEMU through 8.0.0 could trigger a division by zero in scsi_disk_reset in… CVSS 3.1MEDIUM 5.5
See all 418 →

Sources

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