kernel: null pointer dereference in drivers/usb/misc/sisusbvga/sisusb.c driver
Published Aug 19, 2019
4.6
MEDIUMCVSS 3.1
EPSS 0.71%
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/usb/misc/sisusbvga/sisusb.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
No data.
Red Hat Enterprise Linux 5
kernel
Out of support scope
Red Hat Enterprise Linux 6
kernel
Out of support scope
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
Affected
Red Hat Enterprise Linux 8
kernel-rt
Fix deferred
Red Hat Enterprise MRG 2
kernel
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | kernel | Out of support scope | 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 | Affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Fix deferred | n/a |
| Red Hat Enterprise MRG 2 | kernel | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue is rated as having Low impact because of the physical access needed to trigger this issue. Also, failed initialization with the core USB subsystem is also a rare event to hit.
Red Hat mitigation
To mitigate this issue, prevent module sisusbvga from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.71% (0.00712) | 51.93th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.71% (0.00712) | 48.59th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.10% (0.00099) | 25.23th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.19% (0.00191) | 57.82th | v3 (v2023.03.01) |
| Jul 26, 2023 | 0.13% (0.00134) | 47.74th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00117) | 43.99th | 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 | 12.48% (0.12481) | 88.86th | v1 |
| Jan 6, 2022 | 12.48% (0.12481) | 88.73th | v1 |
| Sep 1, 2021 | 3.08% (0.03080) | 81.27th | v1 |
| Apr 14, 2021 | 3.08% (0.03080) | 0.00th | v1 |
References (18)
- 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-2019-15219 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1745536 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=9a5729f68d3a82786aea110b1bfe610be318f80a 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-2019-15219
- https://security.netapp.com/advisory/ntap-20190905-0002/ x_refsource_CONFIRMThird Party Advisory
- https://syzkaller.appspot.com/bug?id=aaf6794922521df1c35c81e32cb2d0bb6a351e7b x_refsource_MISCExploitThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-15219
Change history (0)
No recorded changes yet.