Qemu: display: cirrus: potential arbitrary code execution via cirrus_bitblt_cputovideo
Published Jul 27, 2018
9.9
CRITICALCVSS 3.0
EPSS 3.56%
Description
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
Affected products
-
- Version 2.8StatusaffectedConstraints-
- Version
Configuration 2
- 6.0.2
- 6.2.0
- 6.5
- 7.0
- 7.1
- 5.0
- 6.0
- 7.0
- 8
- 9
- 10
- 7.0
- 6.0
- 7.0
- 6.0
- 7.0
- 7.3
- 7.4
- 7.3
- 7.4
- 7.5
- 6.0
- 7.0
- ≤ 4.7.1
- 4.7.1
- 4.7.1
- 4.7.1
- 4.7.1
- 4.7.1
- 4.7.1
- 4.7.1
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7
Fixed · RHSA-2017:0351
RHEV 3.X Hypervisor and Agents for RHEL-7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0350
Red Hat Enterprise Linux 5
kvm-0:83-277.el5_11
Fixed · RHSA-2017:0454
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.491.el6_8.7
Fixed · RHSA-2017:0352
Red Hat Enterprise Linux 7
qemu-kvm-10:1.5.3-126.el7_3.5
Fixed · RHSA-2017:0396
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7
Fixed · RHSA-2017:0334
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0333
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0332
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0331
Red Hat OpenStack Platform 10.0 (Newton)
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0328
Red Hat OpenStack Platform 8.0 (Liberty)
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0330
Red Hat OpenStack Platform 9.0 (Mitaka)
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0329
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0350
Red Hat Enterprise Linux 5
kvm
Affected
Red Hat Enterprise Linux 5
xen
Will not fix
Red Hat Enterprise Linux 6
qemu-kvm-rhev
Affected
Red Hat OpenStack Platform 11 (Ocata)
qemu-kvm-rhev
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7 | Fixed | RHSA-2017:0351 |
| RHEV 3.X Hypervisor and Agents for RHEL-7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0350 |
| Red Hat Enterprise Linux 5 | kvm-0:83-277.el5_11 | Fixed | RHSA-2017:0454 |
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.491.el6_8.7 | Fixed | RHSA-2017:0352 |
| Red Hat Enterprise Linux 7 | qemu-kvm-10:1.5.3-126.el7_3.5 | Fixed | RHSA-2017:0396 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7 | Fixed | RHSA-2017:0334 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0333 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0332 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0331 |
| Red Hat OpenStack Platform 10.0 (Newton) | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0328 |
| Red Hat OpenStack Platform 8.0 (Liberty) | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0330 |
| Red Hat OpenStack Platform 9.0 (Mitaka) | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0329 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0350 |
| Red Hat Enterprise Linux 5 | kvm | Affected | n/a |
| Red Hat Enterprise Linux 5 | xen | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Affected | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | qemu-kvm-rhev | Not affected | 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:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L
AV:N/AC:L/Au:S/C:C/I:C/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 (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.56% (0.03559) | 88.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.49% (0.03492) | 87.59th | v5 (v2026.06.15) |
| May 24, 2026 | 1.52% (0.01520) | 81.48th | v4 (v2025.03.14) |
| Dec 14, 2025 | 2.54% (0.02536) | 84.99th | v4 (v2025.03.14) |
| Sep 11, 2025 | 0.77% (0.00774) | 72.74th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.59% (0.02590) | 84.26th | v4 (v2025.03.14) |
| Mar 29, 2025 | 4.46% (0.04459) | 81.41th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.59% (0.02590) | 84.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.15% (0.00147) | 52.14th | v3 (v2023.03.01) |
| Jul 6, 2024 | 0.15% (0.00147) | 50.98th | v3 (v2023.03.01) |
| Feb 20, 2024 | 0.15% (0.00152) | 50.18th | v3 (v2023.03.01) |
| Oct 19, 2023 | 0.19% (0.00194) | 56.92th | v3 (v2023.03.01) |
| Jul 21, 2023 | 0.19% (0.00188) | 55.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.14% (0.00138) | 47.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.99% (0.02993) | 83.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.99% (0.02993) | 81.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.99% (0.02993) | 64.39th | v2 (v2022.01.01) |
| Feb 3, 2022 | 8.25% (0.08250) | 85.31th | v1 |
| Jan 6, 2022 | 8.25% (0.08250) | 85.14th | v1 |
| Sep 1, 2021 | 8.25% (0.08250) | 92.75th | v1 |
| Apr 14, 2021 | 8.25% (0.08250) | 0.00th | v1 |
References (27)
- http://rhn.redhat.com/errata/RHSA-2017-0328.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0329.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0330.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0331.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0332.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0333.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0334.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0350.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0351.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0352.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0396.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0454.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.openwall.com/lists/oss-security/2017/02/21/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/96378 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037870 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-2620 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1420484 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2620 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/02/msg00005.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing-listx_refsource_MLIST
- https://lists.gnu.org/archive/html/qemu-devel/2017-02/msg04700.html mailing-listx_refsource_MLISTPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-2620
- https://security.gentoo.org/glsa/201703-07 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.gentoo.org/glsa/201704-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://support.citrix.com/article/CTX220771 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-2620
- https://xenbits.xen.org/xsa/advisory-209.html x_refsource_CONFIRMThird Party Advisory
Change history (0)
No recorded changes yet.