kernel: double-free caused by malicious USB device in drivers/usb/misc/rio500.c
Published Aug 19, 2019
4.6
MEDIUMCVSS 3.1
EPSS 0.77%
Description
An issue was discovered in the Linux kernel before 5.1.8. There is a double-free caused by a malicious USB device in the drivers/usb/misc/rio500.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
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 Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel
Not affected
| 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 | 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 Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat mitigation
As the rio500 module will be auto-loaded when required, its use can be disabled by preventing the module from loading with the following instructions: # echo "blacklist rio500" >> /etc/modprobe.d/rio-500.conf # echo "install rio500 /bin/false" >> /etc/modprobe.d/rio-500.conf The system will need to be restarted if the RIO500 modules are loaded. In most circumstances, the kernel modules will be unable to be unloaded while any devices or programs are using the USB device. 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
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
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 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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.77% (0.00767) | 53.86th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.77% (0.00767) | 50.53th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.11% (0.00108) | 26.67th | 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 | 11.74% (0.11741) | 88.45th | v1 |
| Jan 6, 2022 | 11.74% (0.11741) | 88.31th | v1 |
| Sep 1, 2021 | 2.88% (0.02880) | 80.71th | v1 |
| Apr 14, 2021 | 2.88% (0.02880) | 0.00th | v1 |
References (17)
- 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
- https://access.redhat.com/security/cve/CVE-2019-15212 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1743556 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=3864d33943b4a76c6e64616280e98d2410b1190f 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-2019-15212
- https://security.netapp.com/advisory/ntap-20190905-0002/ x_refsource_CONFIRMThird Party Advisory
- https://syzkaller.appspot.com/bug?id=64aa96c96f594a77eb8d945df21ec76dd35573b3 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-2019-15212
Change history (0)
No recorded changes yet.