Qemu: net: vmxnet: buffer overflow in vmxnet_tx_pkt_parse_headers() in vmxnet3 device emulation
Published Dec 10, 2016
6.0
MEDIUMCVSS 3.1
EPSS 0.39%
Description
The vmxnet_tx_pkt_parse_headers function in hw/net/vmxnet_tx_pkt.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (buffer over-read) by leveraging failure to check IP header length.
Affected products
No data.
Configuration 2
- 4.0
Running on/with
- 7.0
Configuration 3
- 8.0
No data.
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
xen
Not affected
Red Hat Enterprise Linux 6
qemu-kvm
Not affected
Red Hat Enterprise Linux 7
qemu-kvm
Affected
Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse)
qemu-kvm-rhev
Not 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 |
|---|---|---|---|
| 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 | xen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Affected | n/a |
| Red Hat Enterprise Linux OpenStack Platform 5 (Icehouse) | qemu-kvm-rhev | Not 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.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
AV:L/AC:L/Au:N/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.39% (0.00392) | 30.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.39% (0.00392) | 30.79th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00106) | 26.34th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.03% (0.01034) | 41.16th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.10% (0.01104) | 53.31th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (10)
- http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=93060258ae748573ca7197204125a2670047896d x_refsource_CONFIRM
- http://www.openwall.com/lists/oss-security/2016/08/11/7 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/18/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2392 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-6835 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1369012 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.html mailing-listx_refsource_MLISTPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-6835
- https://www.cve.org/CVERecord?id=CVE-2016-6835
| Link | Providers | Tags |
|---|---|---|
| http://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=93060258ae748573ca7197204125a2670047896d | x_refsource_CONFIRM | |
| http://www.openwall.com/lists/oss-security/2016/08/11/7 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/08/18/4 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://access.redhat.com/errata/RHSA-2017:2392 | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2016-6835 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1369012 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://lists.gnu.org/archive/html/qemu-stable/2016-08/msg00077.html | mailing-listx_refsource_MLISTPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-6835 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-6835 |
Change history (0)
No recorded changes yet.