The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel…
Priority LOW 31CWE-362Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Will not fix Red Hat: no fix planned
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
The Siemens R3964 line discipline driver in drivers/tty/n_r3964.c in the Linux kernel before 5.0.8 has multiple race conditions.
Why it matters now
EPSS 0.00366 30th percentileScored 2026-11-07
Fix Will not fix Red Hat: no fix planned
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 11
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | before 3.16.66; 3.17 to before 3.18.139; 3.19 to before 4.4.179; 4.5 to before 4.9.169; 4.10 to before 4.14.112; 4.15 to before 4.19.35; 4.20 to before 5.0.8 | Vulnerable | Linux |
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 9.0 | Vulnerable | Debian |
| cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* | 15.1 | Vulnerable | openSUSE |
| cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* | 42.3 | Vulnerable | openSUSE |
| cpe:2.3:a:netapp:active_iq:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap:9.7:*:*:*:*:vmware_vsphere:*:* | 9.7 | Vulnerable | NetApp |
| cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:9.7:*:*:*:*:*:*:* | 9.7 | Vulnerable | NetApp |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.16.66; 3.17 to before 3.18.139; 3.19 to before 4.4.179; 4.5 to before 4.9.169; 4.10 to before 4.14.112; 4.15 to before 4.19.35; 4.20 to before 5.0.8 Vulnerable ·Linux
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
- cpe:2.3:o:opensuse:leap:42.3:*:*:*:*:*:*:* Versions 42.3 Vulnerable ·openSUSE
- cpe:2.3:a:netapp:active_iq:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:snapprotect:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:storage_replication_adapter_for_clustered_data_ontap:9.7:*:*:*:*:vmware_vsphere:*:* Versions 9.7 Vulnerable ·NetApp
- cpe:2.3:a:netapp:vasa_provider_for_clustered_data_ontap:9.7:*:*:*:*:*:*:* Versions 9.7 Vulnerable ·NetApp
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise MRG 2 | Affected | No fix planned: Out of support scope |
Not affected: 4 products
- Red Hat Enterprise Linux 5
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2019-11486
- 2026-10-03 Alias added: GHSA-fq7v-x63h-q5h9
References
Patch 2
Advisory 15
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.8
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.35
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.112
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.169
- [oss-security] 20190429 Linux kernel: multiple issues
- openSUSE-SU-2019:1404
- https://security.netapp.com/advisory/ntap-20190517-0005/
- openSUSE-SU-2019:1407
- [debian-lts-announce] 20190528 [SECURITY] [DLA 1799-1] linux security update
- [debian-lts-announce] 20190528 [SECURITY] [DLA 1799-2] linux security update
- openSUSE-SU-2019:1479
- https://support.f5.com/csp/article/K50222414
- DSA-4465
- [debian-lts-announce] 20190618 [SECURITY] [DLA 1824-1] linux-4.9 security update
- 20190618 [SECURITY] [DSA 4465-1] linux security update
Sources
- CVE-2019-11486 · CVE Program
- CVE-2019-11486 · NVD
- FIRST EPSS
- GHSA-fq7v-x63h-q5h9 · GitHub Advisory Database · CC BY 4.0
- CVE-2019-11486 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences