Qemu: VNC: memory corruption due to unchecked resolution limit
Published Jul 27, 2018
6.5
MEDIUMCVSS 3.0
EPSS 3.04%
Description
An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.
Affected products
-
- Version 1.7.2StatusaffectedConstraints-
- Version
Configuration 2
- 6.0
- 7.0
- 6.0
- 7.0
- 7.4
- 7.4
- 7.5
- 6.0
- 7.0
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3
Fixed · RHSA-2017:1205
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.503.el6_9.3
Fixed · RHSA-2017:1206
Red Hat Enterprise Linux 7
qemu-kvm-10:1.5.3-141.el7
Fixed · RHSA-2017:1856
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3
Fixed · RHSA-2017:1441
Red Hat Enterprise Linux 5
kvm
Affected
Red Hat Enterprise Linux 5
xen
Affected
Red Hat Enterprise Linux 6
qemu-kvm-rhev
Affected
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Affected
Red Hat Enterprise Linux OpenStack Platform 6 (Juno)
qemu-kvm-rhev
Not affected
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 10 (Newton)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 8 (Liberty)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 9 (Mitaka)
qemu-kvm-rhev
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3 | Fixed | RHSA-2017:1205 |
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.503.el6_9.3 | Fixed | RHSA-2017:1206 |
| Red Hat Enterprise Linux 7 | qemu-kvm-10:1.5.3-141.el7 | Fixed | RHSA-2017:1856 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.503.el6_9.3 | Fixed | RHSA-2017:1441 |
| Red Hat Enterprise Linux 5 | kvm | Affected | n/a |
| Red Hat Enterprise Linux 5 | xen | Affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 6 (Juno) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | 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:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
AV:N/AC:L/Au:S/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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.04% (0.03036) | 87.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.04% (0.03036) | 85.74th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.93% (0.00932) | 74.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.24% (0.00236) | 62.63th | v3 (v2023.03.01) |
| Dec 18, 2023 | 0.24% (0.00236) | 61.65th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.28% (0.00284) | 65.14th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.33% (0.00328) | 67.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00265) | 62.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.07% (0.02069) | 50.36th | v5 (v2026.06.15) |
| Apr 14, 2021 | 2.07% (0.02069) | 0.00th | v1 |
References (13)
- http://www.openwall.com/lists/oss-security/2017/02/23/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- http://www.securityfocus.com/bid/96417 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1205 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1206 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1441 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1856 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-2633 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1425939 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-2633 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=9f64916da20eea67121d544698676295bbb105a7 x_refsource_CONFIRM
- https://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=bea60dd7679364493a0d7f5b54316c767cf894ef x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2017-2633
- https://www.cve.org/CVERecord?id=CVE-2017-2633
Change history (0)
No recorded changes yet.