QEMU: pcnet: integer overflow leads to buffer overflow
Published Oct 9, 2018
7.5
HIGHCVSS 3.0
EPSS 4.50%
Description
Qemu has a Buffer Overflow in pcnet_receive in hw/net/pcnet.c because an incorrect integer data type is used.
Affected products
No data.
Configuration 1
Configuration 2
- 14.04
- 16.04
- 18.04
- 18.10
- 8.0
- 9.0
- 7
- 6.0
- 11
- 11
- 12
- 15
No data.
Red Hat Enterprise Linux 6
qemu-kvm-2:0.12.1.2-2.506.el6_10.5
Fixed · RHSA-2019:2892
Red Hat Enterprise Linux 5
kvm
Not affected
Red Hat Enterprise Linux 7
qemu-kvm
Not affected
Red Hat Enterprise Linux 7
qemu-kvm-ma
Not affected
Red Hat Enterprise Linux 7
qemu-kvm-rhev
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | qemu-kvm-2:0.12.1.2-2.506.el6_10.5 | Fixed | RHSA-2019:2892 |
| Red Hat Enterprise Linux 5 | kvm | Not affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm | Not affected | n/a |
| Red Hat Enterprise Linux 7 | qemu-kvm-ma | Not affected | n/a |
| Red Hat Enterprise Linux 7 | 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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
AV:N/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 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (19 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 4.50% (0.04503) | 91.22th | v5 (v2026.06.15) |
| Jun 15, 2026 | 4.50% (0.04503) | 90.25th | v5 (v2026.06.15) |
| Aug 25, 2025 | 0.34% (0.00345) | 56.37th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.74% (0.00739) | 81.05th | v3 (v2023.03.01) |
| May 28, 2024 | 0.74% (0.00739) | 80.82th | v3 (v2023.03.01) |
| May 4, 2024 | 0.80% (0.00801) | 81.54th | v3 (v2023.03.01) |
| Mar 1, 2024 | 0.56% (0.00565) | 77.22th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.54% (0.00536) | 76.49th | v3 (v2023.03.01) |
| Oct 3, 2023 | 0.54% (0.00536) | 74.44th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.58% (0.00576) | 75.03th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.75% (0.00747) | 78.01th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.45% (0.01454) | 32.67th | v1 |
| Jan 6, 2022 | 1.45% (0.01454) | 31.96th | v1 |
| Sep 1, 2021 | 1.45% (0.01454) | 71.88th | v1 |
| Apr 14, 2021 | 1.45% (0.01454) | 0.00th | v1 |
References (13)
- http://www.openwall.com/lists/oss-security/2018/10/08/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/errata/RHSA-2019:2892 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2018-17962 Vendor Advisory
- https://access.redhat.com/security/cve/cve-2018-17962 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1636773 Issue Tracking
- https://linux.oracle.com/cve/CVE-2018-17962.html Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03268.html mailing-listx_refsource_MLISTExploitMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-17962
- https://usn.ubuntu.com/3826-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-17962
- https://www.debian.org/security/2018/dsa-4338 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://www.suse.com/security/cve/CVE-2018-17962/ Third Party Advisory
Change history (0)
No recorded changes yet.