Race condition in [UNKNOWN] QEMU:
Priority LOW 34CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A flaw was found in qemu Media Transfer Protocol (MTP) before version 3.1.0. A path traversal in the in usb_mtp_write_data function in hw/usb/dev-mtp.c due to an improper filename sanitization. When the guest device is mounted in read-write mode, this allows to read/write arbitrary files which may lead do DoS scenario OR possibly lead to code execution on the host.
Why it matters now
EPSS 0.00424 36th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| [UNKNOWN] | QEMU: | 3.1.0 | — | No fix listed | CNA |
- QEMU: Vendor[UNKNOWN] Affected 3.1.0 Fixed in — No fix listed CNA
CPE configurations NVD · 10
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* | up to 3.0.0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:3.1.0:rc0:*:*:*:*:*:* | 3.1.0 rc0 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:3.1.0:rc1:*:*:*:*:*:* | 3.1.0 rc1 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:3.1.0:rc2:*:*:*:*:*:* | 3.1.0 rc2 | Vulnerable | QEMU |
| cpe:2.3:a:qemu:qemu:3.1.0:rc3:*:*:*:*:*:* | 3.1.0 rc3 | Vulnerable | QEMU |
| cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* | 29 | Vulnerable | Fedoraproject |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* | 14.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* | 16.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* | 18.04 | Vulnerable | Canonical |
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* | 18.10 | Vulnerable | Canonical |
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:* Versions up to 3.0.0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:3.1.0:rc0:*:*:*:*:*:* Versions 3.1.0 rc0 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:3.1.0:rc1:*:*:*:*:*:* Versions 3.1.0 rc1 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:3.1.0:rc2:*:*:*:*:*:* Versions 3.1.0 rc2 Vulnerable ·QEMU
- cpe:2.3:a:qemu:qemu:3.1.0:rc3:*:*:*:*:*:* Versions 3.1.0 rc3 Vulnerable ·QEMU
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:* Versions 29 Vulnerable ·Fedoraproject
- 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:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* Versions 18.10 Vulnerable ·Canonical
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 10 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenStack Platform 10 (Newton)
- Red Hat OpenStack Platform 12 (Pike)
- Red Hat OpenStack Platform 13 (Queens)
- Red Hat OpenStack Platform 14 (Rocky)
- Red Hat OpenStack Platform 8 (Liberty)
- Red Hat OpenStack Platform 9 (Mitaka)
Timeline
- 2026-10-02 Threatist record created from CVE-2018-16867
- 2026-10-03 Alias added: GHSA-6ch3-xhrw-w89m
References
Sources
- CVE-2018-16867 · CVE Program
- CVE-2018-16867 · NVD
- FIRST EPSS
- GHSA-6ch3-xhrw-w89m · GitHub Advisory Database · CC BY 4.0
- CVE-2018-16867 · Red Hat security data · CC BY 4.0
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