qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service…
Priority LOW 25Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 10 fixed, 3 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread.
Why it matters now
EPSS 0.005 43rd percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 10 fixed, 3 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
Remediation
Red Hat 4 advisories
- RHSA-2020:3906 Released 2020-09-29 · Red Hat rating Lowqemu-kvm security, bug fix, and enhancement update
- Red Hat Enterprise Linux Client (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
- Red Hat Enterprise Linux Server (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
- Red Hat Enterprise Linux Workstation (v. 7) qemu-img-10:1.5.3-175.el7, qemu-kvm-10:1.5.3-175.el7, qemu-kvm-common-10:1.5.3-175.el7 +1
- RHSA-2020:3907 Released 2020-09-29 · Red Hat rating Lowqemu-kvm-ma security update
- Red Hat Enterprise Linux Server (v. 7) qemu-img-ma-10:2.12.0-48.el7, qemu-kvm-common-ma-10:2.12.0-48.el7, qemu-kvm-ma-10:2.12.0-48.el7 +1
- Red Hat Enterprise Linux Server Optional (v. 7) qemu-kvm-common-ma-10:2.12.0-48.el7, qemu-kvm-ma-10:2.12.0-48.el7, qemu-kvm-tools-ma-10:2.12.0-48.el7
- RHSA-2020:3267 Released 2020-08-03 · Red Hat rating Lowqemu-kvm-rhev security, bug fix, and enhancement update
- RHV-M 4.3 qemu-img-rhev-10:2.12.0-48.el7, qemu-kvm-common-rhev-10:2.12.0-48.el7, qemu-kvm-rhev-10:2.12.0-48.el7 +1
- Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev-10:2.12.0-48.el7, qemu-kvm-common-rhev-10:2.12.0-48.el7, qemu-kvm-rhev-10:2.12.0-48.el7 +1
Show 1 more Red Hat advisories
- RHSA-2019:2425 Released 2019-08-09 · Red Hat rating Importantqemu-kvm-rhev security and bug fix update
- Red Hat OpenStack Platform 10.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
- Red Hat OpenStack Platform 13.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
- Red Hat OpenStack Platform 14.0 qemu-img-rhev-10:2.12.0-33.el7, qemu-kvm-common-rhev-10:2.12.0-33.el7, qemu-kvm-rhev-10:2.12.0-33.el7 +1
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenStack Platform 12 (Pike) | Affected | No fix yet |
| Red Hat OpenStack Platform 8 (Liberty) | Affected | No fix yet: Fix deferred |
| Red Hat OpenStack Platform 9 (Mitaka) | Affected | No fix yet: Fix deferred |
| RHV-M 4.3 | Fixed | RHSA-2020:3267 |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:3906 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:3906 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:3906, RHSA-2020:3907 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:3907 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:3906 |
| Red Hat OpenStack Platform 10.0 | Fixed | RHSA-2019:2425 |
| Red Hat OpenStack Platform 13.0 | Fixed | RHSA-2019:2425 |
| Red Hat OpenStack Platform 14.0 | Fixed | RHSA-2019:2425 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts | Fixed | RHSA-2020:3267 |
Not affected: 3 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2018-15746
- 2026-10-03 Alias added: GHSA-rp3q-x36m-62mp
References
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-2018-15746 · CVE Program
- CVE-2018-15746 · NVD
- FIRST EPSS
- GHSA-rp3q-x36m-62mp · GitHub Advisory Database · CC BY 4.0
- CVE-2018-15746 · 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