kernel: Null pointer dereference in drivers/input/serio/i8042.c leading to denial-of-service
Published Jan 29, 2018
7.8
HIGHCVSS 3.1
EPSS 0.42%
Description
drivers/input/serio/i8042.c in the Linux kernel before 4.12.4 allows attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated.
Affected products
No data.
Configuration 1
- < 3.2.94
- ≥ 3.3 · < 3.16.49
- ≥ 3.17 · < 3.18.63
- ≥ 3.19 · < 4.1.44
- ≥ 4.2 · < 4.4.79
- ≥ 4.5 · < 4.9.40
- ≥ 4.10 · < 4.12.4
Configuration 2
- 12.04
- 14.04
No data.
Red Hat Enterprise Linux 5
kernel
Will not fix
Red Hat Enterprise Linux 6
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel
Will not fix
Red Hat Enterprise Linux 7
kernel-alt
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Will not fix
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux 5, 6, 7, its real-time kernel and Red Hat Enterprise MRG 2. At this time there are no plans to fix this issue. This issue does not affect the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 7 for ARM 64 and Red Hat Enterprise Linux 7 for Power 9 LE.
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:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00418) | 33.74th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00420) | 33.35th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.03% (0.00026) | 4.42th | 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) |
| Feb 3, 2022 | 1.81% (0.01806) | 35.10th | v1 |
| Jan 6, 2022 | 1.81% (0.01806) | 34.40th | v1 |
| Sep 1, 2021 | 1.81% (0.01806) | 74.37th | v1 |
| Apr 14, 2021 | 1.81% (0.01806) | 0.00th | v1 |
References (10)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=340d394a789518018f834ff70f7534fc463d3226 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- http://www.securityfocus.com/bid/102895 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2017-18079 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1539725 Issue Tracking
- https://github.com/torvalds/linux/commit/340d394a789518018f834ff70f7534fc463d3226 x_refsource_CONFIRMPatch
- https://nvd.nist.gov/vuln/detail/CVE-2017-18079
- https://usn.ubuntu.com/3655-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/3655-2/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-18079
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4 x_refsource_CONFIRMIssue TrackingPatchRelease Notes
| Link | Providers | Tags |
|---|---|---|
| http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=340d394a789518018f834ff70f7534fc463d3226 | x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory | |
| http://www.securityfocus.com/bid/102895 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2017-18079 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1539725 | Issue Tracking | |
| https://github.com/torvalds/linux/commit/340d394a789518018f834ff70f7534fc463d3226 | x_refsource_CONFIRMPatch | |
| https://nvd.nist.gov/vuln/detail/CVE-2017-18079 | ||
| https://usn.ubuntu.com/3655-1/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://usn.ubuntu.com/3655-2/ | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2017-18079 | ||
| https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.12.4 | x_refsource_CONFIRMIssue TrackingPatchRelease Notes |
Change history (0)
No recorded changes yet.