Memory leak in QEMU (aka Quick Emulator), when built with IDE AHCI Emulation support…
Priority LOW 25CWE-401Published · 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, 2 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-401.
Summary
Memory leak in QEMU (aka Quick Emulator), when built with IDE AHCI Emulation support, allows local guest OS privileged users to cause a denial of service (memory consumption) by repeatedly hot-unplugging the AHCI device.
Why it matters now
EPSS 0.00423 36th percentileScored 2026-11-07
Fix Partial Red Hat: 2 advisoriesRed Hat: 7 fixed, 2 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 2.8.1.1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:* | 2.9.0 rc0 | Vulnerable | QEMU |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 2.8.1.1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:2.9.0:rc0:*:*:*:*:*:* Versions 2.9.0 rc0 Vulnerable ·QEMU
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
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 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 |
Not affected: 2 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2017-9373
- 2026-10-03 Alias added: GHSA-48xx-8rq2-ffh3
References
Patch 2
Advisory 4
Sources
- CVE-2017-9373 · CVE Program
- CVE-2017-9373 · NVD
- FIRST EPSS
- GHSA-48xx-8rq2-ffh3 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-9373 · Red Hat security data · CC BY 4.0
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