kernel: null pointer dereference in the drivers/media/usb/siano/smsusb.c driver
Published Aug 19, 2019
4.6
MEDIUMCVSS 3.1
EPSS 0.84%
Description
An issue was discovered in the Linux kernel before 5.1.8. There is a NULL pointer dereference caused by a malicious USB device in the drivers/media/usb/siano/smsusb.c driver.
Affected products
No data.
Configuration 1
- < 5.1.8
Configuration 2
- n/a
Configuration 3
- n/a
- n/a
- n/a
- n/a
Configuration 4
- 16.04
- 18.04
- 19.04
Configuration 5
- 8.0
Configuration 6
- 8.2
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Fix deferred
Red Hat Enterprise Linux 7
kernel
Fix deferred
Red Hat Enterprise Linux 7
kernel-alt
Fix deferred
Red Hat Enterprise Linux 7
kernel-rt
Fix deferred
Red Hat Enterprise Linux 8
kernel
Fix deferred
Red Hat Enterprise Linux 8
kernel-rt
Fix deferred
Red Hat Enterprise MRG 2
kernel-rt
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | kernel-alt | Fix deferred | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | kernel | Fix deferred | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Fix deferred | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
As the smsusb module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions: # echo "install smsusb /bin/true" >> /etc/modprobe.d/disable-smsusb.conf The system will need to be restarted if the module are already loaded. In most circumstances, the smsusb kernel modules will be unable to be unloaded while the adapter is in use. If the system requires this module to work correctly, this mitigation may not be suitable. If you need further assistance, see KCS article https://access.redhat.com/solutions/41278 or contact Red Hat Global Support Services."
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/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 2, 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 2, 2026 | 0.84% (0.00839) | 56.32th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.84% (0.00839) | 52.86th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00096) | 24.71th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.18% (0.00180) | 56.57th | v3 (v2023.03.01) |
| May 22, 2024 | 0.13% (0.00127) | 47.38th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00125) | 45.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.69% (0.02686) | 82.85th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.69% (0.02686) | 81.17th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.83% (0.07834) | 81.57th | v2 (v2022.01.01) |
| Feb 3, 2022 | 15.32% (0.15322) | 90.03th | v1 |
| Jan 6, 2022 | 15.32% (0.15322) | 89.91th | v1 |
| Sep 1, 2021 | 3.88% (0.03876) | 83.07th | v1 |
| Jun 15, 2021 | 3.88% (0.03876) | 0.00th | v1 |
| Apr 14, 2021 | 3.68% (0.03679) | 0.00th | v1 |
References (22)
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/08/20/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/08/22/2 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/08/22/3 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/08/22/4 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/08/22/5 mailing-listx_refsource_MLISTMailing List
- https://access.redhat.com/security/cve/CVE-2019-15218 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1745530 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.8 x_refsource_MISCRelease Notes
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=31e0456de5be379b10fea0fa94a681057114a96e x_refsource_MISCPatch
- https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-15218
- https://security.netapp.com/advisory/ntap-20190905-0002/ x_refsource_CONFIRMThird Party Advisory
- https://syzkaller.appspot.com/bug?id=4a5d7c8c2b6dbedb5b7218c6d7e8666bd2387517 x_refsource_MISCExploitThird Party Advisory
- https://usn.ubuntu.com/4115-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4118-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://usn.ubuntu.com/4147-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-15218
- https://www.oracle.com/security-alerts/cpuApr2021.html x_refsource_MISCPatchThird Party Advisory
Change history (0)
No recorded changes yet.