Qemu: serial: host memory leakage 16550A UART emulation
Published Mar 15, 2017
6.5
MEDIUMCVSS 3.1
EPSS 0.40%
Description
Memory leak in the serial_exit_core function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption and QEMU process crash) via a large number of device unplug operations.
Affected products
No data.
No data.
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat OpenStack Platform 10.0 (Newton)
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat OpenStack Platform 11.0 (Ocata)
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat OpenStack Platform 8.0 (Liberty)
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat OpenStack Platform 9.0 (Mitaka)
qemu-kvm-rhev-10:2.9.0-10.el7
Fixed · RHSA-2017:2408
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
qemu-kvm-rhev-10:2.9.0-14.el7
Fixed · RHSA-2017:2392
Red Hat Enterprise Linux 5
kvm
Will not fix
Red Hat Enterprise Linux 5
xen
Will not fix
Red Hat Enterprise Linux 6
qemu-kvm
Will not fix
Red Hat Enterprise Linux 7
qemu-kvm
Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 10.0 (Newton) | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 11.0 (Ocata) | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 8.0 (Liberty) | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat OpenStack Platform 9.0 (Mitaka) | qemu-kvm-rhev-10:2.9.0-10.el7 | Fixed | RHSA-2017:2408 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | qemu-kvm-rhev-10:2.9.0-14.el7 | Fixed | RHSA-2017:2392 |
| Red Hat Enterprise Linux 5 | kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | xen | Will not fix | 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 OpenStack Platform 5 (Icehouse) | 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
AV:L/AC:L/Au:N/C:N/I:N/A:C
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.40% (0.00399) | 31.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.40% (0.00399) | 31.50th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.14% (0.00137) | 30.98th | 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 | 1.10% (0.01104) | 54.09th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.10% (0.01104) | 53.53th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.28% (0.01282) | 67.60th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.10% (0.01104) | 52.45th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.10% (0.01104) | 50.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.10% (0.01104) | 28.85th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.31% (0.02314) | 53.75th | v1 |
| Jan 6, 2022 | 2.31% (0.02314) | 53.29th | v1 |
| Sep 1, 2021 | 2.31% (0.02314) | 78.25th | v1 |
| Apr 14, 2021 | 2.31% (0.02314) | 0.00th | v1 |
References (12)
- http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=8409dc884a201bf74b30a9d232b6bbdd00cb7e2b x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2017/01/24/8 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/01/25/3 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/95780 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2392 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2408 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-5579 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1416157 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-5579
- https://security.gentoo.org/glsa/201702-28 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-5579
Change history (0)
No recorded changes yet.