HIGH
kernel: multiple race conditions in Siemens R3964 line discipline driver in drivers/tty/n_r3964.c leading to denial of service
Published Apr 23, 2019
7.0
HIGHCVSS 3.1
EPSS 0.37%
Description
The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel before 5.0.8 has multiple race conditions.
Affected products
No data.
Configuration 1
OR
- < 3.16.66
- ≥ 3.17 · < 3.18.139
- ≥ 3.19 · < 4.4.179
- ≥ 4.5 · < 4.9.169
- ≥ 4.10 · < 4.14.112
- ≥ 4.15 · < 4.19.35
- ≥ 4.20 · < 5.0.8
Configuration 3
OR
- n/a
- n/a
- n/a
- n/a
- 9.7
- 9.7
- 9.7
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 Linux 8
kernel-rt
Not affected
Red Hat Enterprise MRG 2
kernel-rt
Out of support scope
| 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 Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise MRG 2 | kernel-rt | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
7.0 HIGH NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity High
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
5.5 MEDIUM Red Hat
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
6.9 MEDIUM NVD
AV:L/AC:M/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
0.37% 0.00366
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.00366
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 | 0.37% (0.00366) | 28.09th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.37% (0.00366) | 28.20th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00087) | 22.74th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.08% (0.00077) | 34.95th | v3 (v2023.03.01) |
| Apr 16, 2024 | 0.08% (0.00077) | 32.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00046) | 14.04th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.55% (0.01547) | 74.94th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.55% (0.01547) | 72.92th | v2 (v2022.01.01) |
| Feb 4, 2022 | 5.84% (0.05839) | 77.39th | v2 (v2022.01.01) |
| Feb 3, 2022 | 14.63% (0.14629) | 89.77th | v1 |
| Jan 6, 2022 | 14.63% (0.14629) | 89.65th | v1 |
| Sep 1, 2021 | 3.68% (0.03679) | 82.80th | v1 |
| Apr 14, 2021 | 3.68% (0.03679) | 0.00th | v1 |
Weaknesses (1)
References (21)
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00037.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00071.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://www.openwall.com/lists/oss-security/2019/04/29/1 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2019-11486 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1705498 Issue Tracking
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.112 x_refsource_MISCVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.35 x_refsource_MISCVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.169 x_refsource_MISCVendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8 x_refsource_MISCVendor Advisory
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c7084edc3f6d67750f50d4183134c4fb5712a5c8 x_refsource_MISCPatchVendor Advisory
- https://github.com/torvalds/linux/commit/c7084edc3f6d67750f50d4183134c4fb5712a5c8 x_refsource_MISCPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00041.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/05/msg00042.html mailing-listx_refsource_MLISTThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/06/msg00011.html mailing-listx_refsource_MLISTThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-11486
- https://seclists.org/bugtraq/2019/Jun/26 mailing-listx_refsource_BUGTRAQMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20190517-0005/ x_refsource_CONFIRMThird Party Advisory
- https://support.f5.com/csp/article/K50222414 x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2019-11486
- https://www.debian.org/security/2019/dsa-4465 vendor-advisoryx_refsource_DEBIANThird Party Advisory
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Apr 23, 2019
Updated Aug 4, 2024
Reserved Apr 23, 2019
Link CVE-2019-11486
CISA Vulnrichment
Updated n/a