Qemu: integer overflow in ROUND_UP macro could result in DoS
Published Jan 31, 2018
5.5
MEDIUMCVSS 3.0
EPSS 0.44%
Description
Integer overflow in the macro ROUND_UP (n, d) in Quick Emulator (Qemu) allows a user to cause a denial of service (Qemu process crash).
Affected products
No data.
Configuration 2
- 9.0
Configuration 3
- 14.04
- 16.04
- 17.10
No data.
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise Linux 5
xen
Not affected
Red Hat Enterprise Linux 6
qemu-kvm
Will not fix
Red Hat Enterprise Linux 7
qemu-kvm
Will not fix
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Will not fix
Red Hat Enterprise Linux 8
qemu-kvm
Not affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
qemu-kvm-rhev
Will not fix
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
qemu-kvm-rhev
Will not fix
Red Hat OpenStack Platform 10 (Newton)
qemu-kvm-rhev
Will not fix
Red Hat OpenStack Platform 11 (Ocata)
qemu-kvm-rhev
Will not fix
Red Hat OpenStack Platform 12 (Pike)
qemu-kvm-rhev
Will not fix
Red Hat OpenStack Platform 8 (Liberty)
qemu-kvm-rhev
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
qemu-kvm-rhev
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Not affected | n/a |
| Red Hat Enterprise Linux 5 | xen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat OpenStack Platform 12 (Pike) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | qemu-kvm-rhev | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/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 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.44% (0.00442) | 36.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.45% (0.00451) | 35.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00055) | 14.43th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.81% (0.01806) | 35.10th | v1 |
| Jan 6, 2022 | 1.81% (0.01806) | 34.40th | v1 |
| Sep 1, 2021 | 1.81% (0.01806) | 74.37th | v1 |
| Apr 14, 2021 | 1.81% (0.01806) | 0.00th | v1 |
References (10)
- http://www.openwall.com/lists/oss-security/2018/01/19/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/102759 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-18043 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1536377 Issue Tracking
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=2098b073f398cd628c09c5a78537a6854 x_refsource_CONFIRM
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-18043
- https://usn.ubuntu.com/3575-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-18043
- https://www.debian.org/security/2018/dsa-4213 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2018/01/19/1 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/102759 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-18043 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1536377 | Issue Tracking | |
| https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=2098b073f398cd628c09c5a78537a6854 | x_refsource_CONFIRM | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18043 | ||
| https://usn.ubuntu.com/3575-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-18043 | ||
| https://www.debian.org/security/2018/dsa-4213 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.