A flaw was found in the Linux kernel's Bluetooth implementation of UART, all versions kernel 3.x.x before 4.18.0 and kernel 5.x.x.

published 2019-11-25 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-2224

cvss: 4.7; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

A flaw was found in the Linux kernel's Bluetooth implementation of UART, all versions kernel 3.x.x before 4.18.0 and kernel 5.x.x. An attacker with local access and write permissions to the Bluetooth hardware could use this flaw to issue a specially crafted ioctl function call and cause the system to crash.

Patch / fix

fixed in 1 distros 5

linux linux_kernel 4.18.0

debian ubuntu red hat suse opensuse

linux Debian 14, Debian 13, Debian 12 5.2.6-1

debian advisories DEBIAN-CVE-2019-10207

linux Ubuntu 16.04 LTS 4.4.0-165.193
linux Ubuntu 18.04 LTS 4.15.0-60.67
linux-aws Ubuntu 16.04 LTS 4.4.0-1095.106
linux-aws Ubuntu 18.04 LTS 4.15.0-1047.49
linux-gcp Ubuntu 16.04 LTS 4.15.0-1041.43
linux-gcp Ubuntu 18.04 LTS 4.15.0-1042.45
linux-hwe Ubuntu 16.04 LTS 4.15.0-60.67~16.04.1
linux-hwe Ubuntu 18.04 LTS 5.0.0-31.33~18.04.1

ubuntu advisories UBUNTU-CVE-2019-10207

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

kernel RHEL 7 3.10.0-1127.el7
perf RHEL 7 3.10.0-1127.el7
bpftool RHEL 7 3.10.0-1127.el7
python-perf RHEL 7 3.10.0-1127.el7
kernel-kdump RHEL 7 3.10.0-1127.el7
kernel-tools RHEL 7 3.10.0-1127.el7
kernel-tools-libs RHEL 7 3.10.0-1127.el7
kernel-bootwrapper RHEL 7 3.10.0-1127.el7

red hat advisories RHSA-2020:1016 RHSA-2019:3517 RHSA-2020:1070 RHSA-2019:3309

kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.124.1
kernel-rt SLE Real Time 12 SP4 4.12.14-8.6.1
kernel-syms-rt SLE Real Time 12 SP4 4.12.14-8.6.1
kernel-rt_debug SLE Real Time 12 SP4 4.12.14-8.6.1
kernel-source-rt SLE Real Time 12 SP4 4.12.14-8.6.1
kernel-rt Real Time Module 15 SP1 4.12.14-14.11.1
kernel-syms-rt Real Time Module 15 SP1 4.12.14-14.11.1
kernel-rt_debug Real Time Module 15 SP1 4.12.14-14.11.1

suse advisories SUSE-SU-2019:2950-1 SUSE-SU-2019:2756-1 SUSE-SU-2019:2738-1 SUSE-SU-2019:2658-1 SUSE-SU-2019:2648-1 SUSE-SU-2019:2424-1

kernel-source openSUSE Tumbleweed 5.14.6-1.4
kernel-source openSUSE Tumbleweed 6.6.17-1.1
kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.70.1
kernel-obs-qa openSUSE Leap 15.0 4.12.14-lp150.12.70.1
kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.70.1
kernel-default openSUSE Leap 15.0 4.12.14-lp150.12.70.1
kernel-vanilla openSUSE Leap 15.0 4.12.14-lp150.12.70.1
kernel-kvmsmall openSUSE Leap 15.0 4.12.14-lp150.12.70.1

opensuse advisories openSUSE-SU-2024:10728-1 openSUSE-SU-2024:13704-1 openSUSE-SU-2019:1924-1 openSUSE-SU-2019:1923-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-10207 updated 2026-11-05 cvss 4.7

kernel: null-pointer dereference in hci_uart_set_flow_control

Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more
affected: no fix planned “Will not fix”
Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-147.el8, kernel-debuginfo-common-aarch64 4.18.0-147.el8, kernel-debuginfo-common-ppc64le 4.18.0-147.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-147.el8, kernel 4.18.0-147.el8, bpftool 4.18.0-147.el8, kernel-core 4.18.0-147.el8, kernel-tools 4.18.0-147.el8, python3-perf 4.18.0-147.el8, +15 more
fixed: vendor fix RHSA-2019:3517
Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1127.el7, kernel 3.10.0-1127.el7, bpftool 3.10.0-1127.el7, python-perf 3.10.0-1127.el7, kernel-tools 3.10.0-1127.el7, kernel-tools-libs 3.10.0-1127.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1127.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1127.el7, kernel 3.10.0-1127.el7, bpftool 3.10.0-1127.el7, python-perf 3.10.0-1127.el7, kernel-tools 3.10.0-1127.el7, kernel-tools-libs 3.10.0-1127.el7, +2 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1127.el7
fixed: vendor fix RHSA-2020:1016
Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1127.rt56.1093.el7, kernel-rt-trace 3.10.0-1127.rt56.1093.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1127.rt56.1093.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1127.rt56.1093.el7, kernel-rt-kvm 3.10.0-1127.rt56.1093.el7, kernel-rt-trace 3.10.0-1127.rt56.1093.el7, kernel-rt-debug-kvm 3.10.0-1127.rt56.1093.el7, kernel-rt-trace-kvm 3.10.0-1127.rt56.1093.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1127.rt56.1093.el7
fixed: vendor fix RHSA-2020:1070
Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, kernel-rt-debug-modules 4.18.0-147.rt24.93.el8, kernel-rt-modules-extra 4.18.0-147.rt24.93.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-147.rt24.93.el8, kernel-rt-kvm 4.18.0-147.rt24.93.el8, kernel-rt-core 4.18.0-147.rt24.93.el8, kernel-rt-modules 4.18.0-147.rt24.93.el8, kernel-rt-debug-kvm 4.18.0-147.rt24.93.el8, kernel-rt-debug-core 4.18.0-147.rt24.93.el8, +4 more
fixed: vendor fix RHSA-2019:3309
Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1127.el7, kernel 3.10.0-1127.el7, bpftool 3.10.0-1127.el7, python-perf 3.10.0-1127.el7, kernel-kdump 3.10.0-1127.el7, kernel-tools 3.10.0-1127.el7, +7 more Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1127.el7, kernel-debuginfo-common-x86_64 3.10.0-1127.el7, kernel-debuginfo-common-ppc64le 3.10.0-1127.el7 Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1127.el7, kernel 3.10.0-1127.el7, bpftool 3.10.0-1127.el7, python-perf 3.10.0-1127.el7, kernel-tools 3.10.0-1127.el7, kernel-tools-libs 3.10.0-1127.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1127.el7
fixed: vendor fix RHSA-2020:1016
Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.88% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.0	4.7	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	3.1	5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	2.1	AV:L/AC:L/Au:N/C:N/I:N/A:P

Affected products

Red Hat kernel

Classification

Weakness

CWE-476 NULL Pointer Dereference

Technology feeds

Linux kernel rss critical rss

References

bugzilla.redhat.com /show_bug.cgi?id=CVE-2019-10207
issue-tracking, third-party-advisory
security.netapp.com /advisory/ntap-20200103-0001/

Sources

CVE List CVE-2019-10207
NVD CVE-2019-10207

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary