kernel: Memory corruption in ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c
Published Mar 20, 2018
7.8
HIGHCVSS 3.1
EPSS 0.53%
Description
Incorrect buffer length handling in the ncp_read_kernel function in fs/ncpfs/ncplib_kernel.c in the Linux kernel through 4.15.11, and in drivers/staging/ncpfs/ncplib_kernel.c in the Linux kernel 4.16-rc through 4.16-rc6, could be exploited by malicious NCPFS servers to crash the kernel or execute code.
Affected products
No data.
Configuration 1
- ≥ 2.6.12 · < 3.2.102
- ≥ 3.3 · < 3.16.57
- ≥ 3.17 · < 3.18.103
- ≥ 3.19 · < 4.1.52
- ≥ 4.2 · < 4.4.125
- ≥ 4.5 · < 4.9.91
- ≥ 4.10 · < 4.14.31
- ≥ 4.15 · < 4.15.14
- 4.16
- 4.16
- 4.16
- 4.16
- 4.16
- 4.16
- 4.16
Configuration 2
- 12.04
- 14.04
- 16.04
- 17.10
Configuration 3
- 7.0
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | 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:H/I:H/A:H
CVSS:3.0/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:C/I:C/A:C
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
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 (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.53% (0.00526) | 42.48th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.52% (0.00517) | 39.61th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00059) | 15.61th | 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 14, 2023 | 0.06% (0.00064) | 26.16th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 14.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.92% (0.01916) | 77.44th | v2 (v2022.01.01) |
| Dec 15, 2022 | 1.92% (0.01916) | 76.92th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.86% (0.01864) | 75.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.86% (0.01864) | 54.47th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.97% (0.04966) | 78.29th | v1 |
| Jan 6, 2022 | 4.97% (0.04966) | 78.08th | v1 |
| Sep 1, 2021 | 4.97% (0.04966) | 87.52th | v1 |
| Apr 14, 2021 | 4.97% (0.04966) | 0.00th | v1 |
References (18)
- http://www.openwall.com/lists/oss-security/2022/12/27/3 mailing-listMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/103476 vdb-entryBroken LinkThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-8822 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1558697 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/05/msg00000.html mailing-listMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2018-8822
- https://usn.ubuntu.com/3653-1/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3653-2/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3654-1/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3654-2/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3655-1/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3655-2/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3656-1/ vendor-advisoryThird Party Advisory
- https://usn.ubuntu.com/3657-1/ vendor-advisoryThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-8822
- https://www.debian.org/security/2018/dsa-4187 vendor-advisoryThird Party Advisory
- https://www.debian.org/security/2018/dsa-4188 vendor-advisoryThird Party Advisory
- https://www.mail-archive.com/netdev%40vger.kernel.org/msg223373.html PatchThird Party Advisory
Change history (0)
No recorded changes yet.