qemu-kvm: Integer overflow in vnc_client_read() and protocol_client_msg()
Published Jan 23, 2020
6.5
MEDIUMCVSS 3.1
EPSS 3.61%
Description
Integer overflow in the VNC display driver in QEMU before 2.1.0 allows attachers to cause a denial of service (process crash) via a CLIENT_CUT_TEXT message, which triggers an infinite loop.
Affected products
-
- Version before 2.1.0StatusaffectedConstraints-
- Version
Configuration 2
- 21
- 22
- 23
Configuration 3
- 12.04
- 14.04
- 15.04
Configuration 4
- 11
- 11
- 11
- 11
- 12
- 11
- 11
- 12
- 11
- 11
- 12
No data.
Red Hat Ceph Storage 1.1
qemu-kvm
Will not fix
Red Hat Enterprise Linux 5
kvm
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
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 Enterprise Virtualization 3
qemu-kvm-rhev
Will not fix
Red Hat Enterprise Virtualization 3
rhev-hypervisor
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Ceph Storage 1.1 | qemu-kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | kvm | 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 |
| 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 Enterprise Virtualization 3 | qemu-kvm-rhev | Will not fix | n/a |
| Red Hat Enterprise Virtualization 3 | rhev-hypervisor | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the versions of kvm and xen packages as shipped with Red Hat Enterprise Linux 5. This issue affects the versions of the qemu-kvm packages as shipped with Red Hat Enterprise Linux 6 and 7. This issue affects the Red Hat Enterprise Linux 6 based versions of qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3. This issue affect the Red Hat Enterprise Linux 7 based versions of the qemu-kvm-rhev packages as shipped with Red Hat Enterprise Virtualization 3.
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: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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- 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 | 3.61% (0.03610) | 89.12th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.64% (0.03640) | 88.06th | v5 (v2026.06.15) |
| Apr 23, 2026 | 8.81% (0.08809) | 92.55th | v4 (v2025.03.14) |
| Mar 30, 2025 | 4.44% (0.04440) | 88.00th | v4 (v2025.03.14) |
| Mar 29, 2025 | 15.36% (0.15363) | 91.09th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.44% (0.04440) | 88.30th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.17% (0.00173) | 55.66th | v3 (v2023.03.01) |
| Oct 10, 2023 | 0.17% (0.00173) | 54.05th | v3 (v2023.03.01) |
| May 8, 2023 | 0.35% (0.00348) | 67.46th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.48% (0.00477) | 71.99th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168077.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168646.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/168671.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00026.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00005.html x_refsource_MISCMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00011.html x_refsource_MISCMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2015/09/02/7 x_refsource_MISCMailing ListPatchThird Party Advisory
- http://www.ubuntu.com/usn/USN-2745-1 x_refsource_MISCPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2015-5239 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1257735 Issue Tracking
- https://github.com/qemu/qemu/commit/f9a70e79391f6d7c2a912d785239ee8effc1922d x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-5239
- https://www.arista.com/en/support/advisories-notices/security-advisories/1188-security-advisory-14 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-5239
Change history (0)
No recorded changes yet.