The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when…
Priority LOW 25CWE-369Published · 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: 7 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-369.
Summary
The cirrus_do_copy function in hw/display/cirrus_vga.c in QEMU (aka Quick Emulator), when cirrus graphics mode is VGA, allows local guest OS privileged users to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving blit pitch values.
Why it matters now
EPSS 0.00413 35th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 7 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | up to 2.7.1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:* | 2.8.0 rc0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:* | 2.8.0 rc1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:* | 2.8.0 rc2 | Vulnerable | QEMU |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.7.1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.8.0:rc0:*:*:*:*:*:* Versions 2.8.0 rc0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.8.0:rc1:*:*:*:*:*:* Versions 2.8.0 rc1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.8.0:rc2:*:*:*:*:*:* Versions 2.8.0 rc2 Vulnerable ·QEMU
Remediation
Red Hat 2 advisories
- RHSA-2017:2408 Released 2017-08-01 · Red Hat rating Moderateqemu-kvm-rhev security and bug fix update
- Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- Red Hat OpenStack Platform 11.0 qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- Red Hat OpenStack Platform 8.0 (Liberty) qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- Red Hat OpenStack Platform 9.0 qemu-img-rhev-10:2.9.0-10.el7, qemu-kvm-common-rhev-10:2.9.0-10.el7, qemu-kvm-rhev-10:2.9.0-10.el7 +1
- RHSA-2017:2392 Released 2017-08-01 · Red Hat rating Importantqemu-kvm-rhev security, bug fix, and enhancement update
- Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.9.0-14.el7, qemu-kvm-common-rhev-10:2.9.0-14.el7, qemu-kvm-rhev-10:2.9.0-14.el7 +1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | Fixed | RHSA-2017:2408 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 10.0 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 11.0 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 8.0 (Liberty) | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 9.0 | Fixed | RHSA-2017:2408 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | Fixed | RHSA-2017:2392 |
Timeline
- 2026-10-02 Threatist record created from CVE-2016-9922
- 2026-10-03 Alias added: GHSA-83fr-598x-jggw
References
Patch 3
Advisory 3
More Qemu vulnerabilities
- 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
Sources
- CVE-2016-9922 · CVE Program
- CVE-2016-9922 · NVD
- FIRST EPSS
- GHSA-83fr-598x-jggw · GitHub Advisory Database · CC BY 4.0
- CVE-2016-9922 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences