Qemu: ui: vnc: avoid floating point exception
Published Apr 11, 2017
6.5
MEDIUMCVSS 3.1
EPSS 3.12%
Description
Qemu, when built with VNC display driver support, allows remote attackers to cause a denial of service (arithmetic exception and application crash) via crafted SetPixelFormat messages from a client.
Affected products
No data.
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
Not affected
Red Hat Enterprise Linux 7
qemu-kvm
Will not fix
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Will not fix
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
| 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 | Not affected | 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 |
| 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 |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the versions of the kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue does not affect the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6, and the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 7. This issue affects the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This has been rated as having Moderate security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:M/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.12% (0.03115) | 87.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.12% (0.03115) | 86.07th | v5 (v2026.06.15) |
| Aug 20, 2025 | 2.81% (0.02814) | 85.56th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.08% (0.04077) | 87.79th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.93% (0.00931) | 83.69th | v3 (v2023.03.01) |
| Jul 12, 2024 | 0.93% (0.00931) | 83.16th | v3 (v2023.03.01) |
| Jun 3, 2024 | 0.82% (0.00823) | 81.92th | v3 (v2023.03.01) |
| Apr 23, 2024 | 1.16% (0.01164) | 84.74th | v3 (v2023.03.01) |
| Jan 31, 2024 | 0.99% (0.00991) | 81.98th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.89% (0.00886) | 80.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.64% (0.00641) | 76.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.31% (0.01315) | 68.50th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.31% (0.01315) | 68.21th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.31% (0.01315) | 66.08th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.31% (0.01315) | 41.88th | v2 (v2022.01.01) |
References (11)
- http://git.qemu-project.org/?p=qemu.git%3Ba=commitdiff%3Bh=4c65fed8bdf96780735dbdb92a8 x_refsource_CONFIRM
- http://www.debian.org/security/2016/dsa-3469 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2016/dsa-3470 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.debian.org/security/2016/dsa-3471 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/12/08/7 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/78708 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8504 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1289541 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8504
- https://security.gentoo.org/glsa/201602-01 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-8504
| Link | Providers | Tags |
|---|---|---|
| http://git.qemu-project.org/?p=qemu.git%3Ba=commitdiff%3Bh=4c65fed8bdf96780735dbdb92a8 | x_refsource_CONFIRM | |
| http://www.debian.org/security/2016/dsa-3469 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.debian.org/security/2016/dsa-3470 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.debian.org/security/2016/dsa-3471 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2015/12/08/7 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/78708 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-8504 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1289541 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8504 | ||
| https://security.gentoo.org/glsa/201602-01 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2015-8504 |
Change history (0)
No recorded changes yet.