Qemu: net: out of bounds read in net_checksum_calculate()
Published Apr 8, 2016
8.4
HIGHCVSS 3.1
EPSS 0.56%
Description
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
Affected products
No data.
Configuration 2
- 12.04
- 14.04
- 15.10
- 16.04
Configuration 3
- 8.0
Configuration 4
- 5.0
- 3.0
- 4.0
Running on/with
- 7.0
Configuration 5
- 5.0
- 3.0
Running on/with
- 6.0
Configuration 6
- 6.0
- 7.0
- 8
- 9
- 6.0
- 7.0
- 7.3
- 7.4
- 7.5
- 7.6
- 7.7
- 6.0
- 7.0
- 7.3
- 7.4
- 7.6
- 7.7
- 7.3
- 7.6
- 7.7
- 6.0
- 7.0
No data.
RHEV 3.X Hypervisor and Agents for RHEL-6
qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.6
Fixed · RHSA-2017:0344
RHEV 3.X Hypervisor and Agents for RHEL-7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0350
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.491.el6_8.6
Fixed · RHSA-2017:0309
Red Hat Enterprise Linux 7
qemu-kvm-10:1.5.3-126.el7_3.3
Fixed · RHSA-2017:0083
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6
qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7
Fixed · RHSA-2017:0334
Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7
qemu-kvm-rhev-10:2.6.0-27.el7
Fixed · RHSA-2016:2706
Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7
qemu-kvm-rhev-10:2.6.0-27.el7
Fixed · RHSA-2016:2705
Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7
qemu-kvm-rhev-10:2.6.0-27.el7
Fixed · RHSA-2016:2704
Red Hat OpenStack Platform 8.0 (Liberty)
qemu-kvm-rhev-10:2.6.0-27.el7
Fixed · RHSA-2016:2670
Red Hat OpenStack Platform 9.0 (Mitaka)
qemu-kvm-rhev-10:2.6.0-27.el7
Fixed · RHSA-2016:2671
Red Hat Virtualization 4 for Red Hat Enterprise Linux 7
qemu-kvm-rhev-10:2.6.0-28.el7_3.6
Fixed · RHSA-2017:0350
Red Hat Enterprise Linux 5
kvm
Will not fix
Red Hat Enterprise Linux 6
qemu-kvm-rhev
Affected
Red Hat OpenStack Platform 10 (Newton)
qemu-kvm-rhev
Not affected
Red Hat OpenStack Platform 11 (Ocata)
qemu-kvm-rhev
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| RHEV 3.X Hypervisor and Agents for RHEL-6 | qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.6 | Fixed | RHSA-2017:0344 |
| RHEV 3.X Hypervisor and Agents for RHEL-7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0350 |
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.491.el6_8.6 | Fixed | RHSA-2017:0309 |
| Red Hat Enterprise Linux 7 | qemu-kvm-10:1.5.3-126.el7_3.3 | Fixed | RHSA-2017:0083 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | qemu-kvm-rhev-2:0.12.1.2-2.491.el6_8.7 | Fixed | RHSA-2017:0334 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-27.el7 | Fixed | RHSA-2016:2706 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-27.el7 | Fixed | RHSA-2016:2705 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev-10:2.6.0-27.el7 | Fixed | RHSA-2016:2704 |
| Red Hat OpenStack Platform 8.0 (Liberty) | qemu-kvm-rhev-10:2.6.0-27.el7 | Fixed | RHSA-2016:2670 |
| Red Hat OpenStack Platform 9.0 (Mitaka) | qemu-kvm-rhev-10:2.6.0-27.el7 | Fixed | RHSA-2016:2671 |
| Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 | qemu-kvm-rhev-10:2.6.0-28.el7_3.6 | Fixed | RHSA-2017:0350 |
| Red Hat Enterprise Linux 5 | kvm | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Affected | n/a |
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Not affected | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | qemu-kvm-rhev | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This has been rated as having Low 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:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:H
CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:L
AV:L/AC:L/Au:N/C:P/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 | 0.56% (0.00564) | 44.83th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.57% (0.00568) | 42.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00058) | 15.32th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00064) | 30.08th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.06% (0.00064) | 28.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00064) | 26.16th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.55% (0.01547) | 51.82th | v2 (v2022.01.01) |
References (20)
- http://git.qemu.org/?p=qemu.git%3Ba=commitdiff%3Bh=362786f14a753d8a5256ef97d7c10ed576d6572b x_refsource_CONFIRM
- http://rhn.redhat.com/errata/RHSA-2016-2670.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2671.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2704.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2705.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2706.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0083.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0309.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0334.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0344.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0350.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/03/03/9 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/03/07/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/84130 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-2974-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2016-2857 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1296567 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-2857
- https://www.cve.org/CVERecord?id=CVE-2016-2857
Change history (0)
No recorded changes yet.