Qemu: net: mcf_fec: infinite loop while receiving data in mcf_fec_receive
Published Dec 29, 2016
5.5
MEDIUMCVSS 3.1
EPSS 0.42%
Description
QEMU (aka Quick Emulator) built with the ColdFire Fast Ethernet Controller emulator support is vulnerable to an infinite loop issue. It could occur while receiving packets in 'mcf_fec_receive'. A privileged user/process inside guest could use this issue to crash the QEMU process on the host leading to DoS.
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
Not affected
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Not 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 8 (Liberty)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 9 (Mitaka)
qemu-kvm-rhev
Not affected
| 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 | Not affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Not 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 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:L/UI:N/S:U/C:N/I:N/A:H
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:N/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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00420) | 34.04th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00420) | 33.36th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00097) | 24.89th | 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) |
| 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://www.openwall.com/lists/oss-security/2016/12/02/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/12/02/8 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/94638 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2016-9776 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1400829 x_refsource_CONFIRMIssue TrackingThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05324.html mailing-listx_refsource_MLISTPatchVendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-9776
- https://security.gentoo.org/glsa/201701-49 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2016-9776
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/12/02/3 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/12/02/8 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/94638 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2016-9776 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1400829 | x_refsource_CONFIRMIssue TrackingThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html | mailing-listx_refsource_MLISTThird Party Advisory | |
| https://lists.gnu.org/archive/html/qemu-devel/2016-11/msg05324.html | mailing-listx_refsource_MLISTPatchVendor Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-9776 | ||
| https://security.gentoo.org/glsa/201701-49 | vendor-advisoryx_refsource_GENTOOThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2016-9776 |
Change history (0)
No recorded changes yet.