QEMU: seccomp: blacklist is not applied to all threads
Published Aug 29, 2018
5.5
MEDIUMCVSS 3.1
EPSS 0.50%
Description
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.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
qemu-kvm-10:1.5.3-175.el7
Fixed · RHSA-2020:3906
Red Hat Enterprise Linux 7
qemu-kvm-ma-10:2.12.0-48.el7
Fixed · RHSA-2020:3907
Red Hat OpenStack Platform 10.0 (Newton)
qemu-kvm-rhev-10:2.12.0-33.el7
Fixed · RHSA-2019:2425
Red Hat OpenStack Platform 13.0 (Queens)
qemu-kvm-rhev-10:2.12.0-33.el7
Fixed · RHSA-2019:2425
Red Hat OpenStack Platform 14.0 (Rocky)
qemu-kvm-rhev-10:2.12.0-33.el7
Fixed · RHSA-2019:2425
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
qemu-kvm-rhev-10:2.12.0-48.el7
Fixed · RHSA-2020:3267
Red Hat Virtualization Engine 4.3
qemu-kvm-rhev-10:2.12.0-48.el7
Fixed · RHSA-2020:3267
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise Linux 6
qemu-kvm
Not affected
Red Hat Enterprise Linux 8
qemu-kvm
Not affected
Red Hat OpenStack Platform 12 (Pike)
qemu-kvm-rhev
Affected
Red Hat OpenStack Platform 8 (Liberty)
qemu-kvm-rhev
Fix deferred
Red Hat OpenStack Platform 9 (Mitaka)
qemu-kvm-rhev
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | qemu-kvm-10:1.5.3-175.el7 | Fixed | RHSA-2020:3906 |
| Red Hat Enterprise Linux 7 | qemu-kvm-ma-10:2.12.0-48.el7 | Fixed | RHSA-2020:3907 |
| Red Hat OpenStack Platform 10.0 (Newton) | qemu-kvm-rhev-10:2.12.0-33.el7 | Fixed | RHSA-2019:2425 |
| Red Hat OpenStack Platform 13.0 (Queens) | qemu-kvm-rhev-10:2.12.0-33.el7 | Fixed | RHSA-2019:2425 |
| Red Hat OpenStack Platform 14.0 (Rocky) | qemu-kvm-rhev-10:2.12.0-33.el7 | Fixed | RHSA-2019:2425 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | qemu-kvm-rhev-10:2.12.0-48.el7 | Fixed | RHSA-2020:3267 |
| Red Hat Virtualization Engine 4.3 | qemu-kvm-rhev-10:2.12.0-48.el7 | Fixed | RHSA-2020:3267 |
| Red Hat Enterprise Linux 5 | kvm | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux 8 | qemu-kvm | Not affected | n/a |
| Red Hat OpenStack Platform 12 (Pike) | qemu-kvm-rhev | Affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | qemu-kvm-rhev | Fix deferred | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | qemu-kvm-rhev | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
AV:L/AC:L/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.50% (0.00500) | 40.66th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.50% (0.00500) | 41.87th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.05% (0.00052) | 21.27th | v3 (v2023.03.01) |
| Jun 1, 2024 | 0.05% (0.00052) | 20.51th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.05% (0.00052) | 18.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.26th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00890) | 30.33th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00890) | 12.04th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (7)
- http://www.openwall.com/lists/oss-security/2018/08/28/6 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2425 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2018-15746 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1615637 Issue Tracking
- https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg04892.html mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-15746
- https://www.cve.org/CVERecord?id=CVE-2018-15746
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2018/08/28/6 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2019:2425 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2018-15746 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1615637 | Issue Tracking | |
| https://lists.gnu.org/archive/html/qemu-devel/2018-08/msg04892.html | mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-15746 | ||
| https://www.cve.org/CVERecord?id=CVE-2018-15746 |
Change history (0)
No recorded changes yet.