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Fencer Vulns
high 7.0

CVE-2019-15917 json

An issue was discovered in the Linux kernel before 5.0.5.

published 2019-09-04 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6821

cvss
7.0
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

An issue was discovered in the Linux kernel before 5.0.5. There is a use-after-free issue when hci_uart_register_dev() fails in hci_uart_set_proto() in drivers/bluetooth/hci_ldisc.c.

Patch / fix

  • linux linux_kernel 3.13, 4.9.202, 4.14.109, 4.19.32, 5.0.5
  • linux Debian 14, Debian 13, Debian 12 4.19.37-1

debian advisories DEBIAN-CVE-2019-15917

  • linux Ubuntu 18.04 LTS 4.15.0-60.67
  • 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 5.0.0-23.24~18.04.1
  • linux-kvm Ubuntu 18.04 LTS 4.15.0-1043.43
  • linux-oem Ubuntu 18.04 LTS 4.15.0-1056.65

ubuntu advisories UBUNTU-CVE-2019-15917

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-alt RHEL 7 4.14.0-115.26.1.el7a
  • perf RHEL 7 4.14.0-115.26.1.el7a
  • kernel RHEL 7 4.14.0-115.26.1.el7a
  • python-perf RHEL 7 4.14.0-115.26.1.el7a
  • kernel-tools RHEL 7 4.14.0-115.26.1.el7a
  • kernel-tools-libs RHEL 7 4.14.0-115.26.1.el7a
  • kernel-bootwrapper RHEL 7 4.14.0-115.26.1.el7a
  • kernel-abi-whitelists RHEL 7 4.14.0-115.26.1.el7a

red hat advisories RHSA-2020:2854RHSA-2020:4431RHSA-2020:4060RHSA-2020:4609RHSA-2020:4062RHSA-2021:0019

  • 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
  • kernel-source-rt Real Time Module 15 SP1 4.12.14-14.11.1

suse advisories SUSE-SU-2019:3252-1SUSE-SU-2019:3247-1SUSE-SU-2019:3246-1SUSE-SU-2019:3237-1SUSE-SU-2019:3233-1SUSE-SU-2019:3224-1

  • kernel-syms openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-obs-qa openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-source openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-default openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-vanilla openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-kvmsmall openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-obs-build openSUSE Leap 15.1 4.12.14-lp151.28.16.1
  • kernel-syms openSUSE Leap 15.0 4.12.14-lp150.12.73.1

opensuse advisories openSUSE-SU-2019:2181-1openSUSE-SU-2019:2173-1

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-2019-15917 updated cvss 7.0

kernel: use-after-free in drivers/bluetooth/hci_ldisc.c

  • Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    affected: workaround, no fix planned “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.”
  • Red Hat CodeReady Linux Builder (v. 8) kernel-debuginfo-common-x86_64 4.18.0-240.el8, kernel-debuginfo-common-aarch64 4.18.0-240.el8, kernel-debuginfo-common-ppc64le 4.18.0-240.el8 Red Hat Enterprise Linux BaseOS (v. 8) perf 4.18.0-240.el8, kernel 4.18.0-240.el8, bpftool 4.18.0-240.el8, kernel-core 4.18.0-240.el8, kernel-tools 4.18.0-240.el8, python3-perf 4.18.0-240.el8, +15 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4431
  • Red Hat Enterprise Linux Client (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Client Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7 Red Hat Enterprise Linux ComputeNode (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) perf 3.10.0-1062.43.1.el7, kernel 3.10.0-1062.43.1.el7, bpftool 3.10.0-1062.43.1.el7, python-perf 3.10.0-1062.43.1.el7, kernel-tools 3.10.0-1062.43.1.el7, kernel-tools-libs 3.10.0-1062.43.1.el7, +2 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2021:0019
  • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4060
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.43.1.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2021:0019
  • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) perf 4.14.0-115.26.1.el7a, kernel 4.14.0-115.26.1.el7a, kernel-alt 4.14.0-115.26.1.el7a, python-perf 4.14.0-115.26.1.el7a, kernel-tools 4.14.0-115.26.1.el7a, kernel-tools-libs 4.14.0-115.26.1.el7a, +3 more Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debuginfo-common-ppc64le 4.14.0-115.26.1.el7a
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:2854
  • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7 Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt 3.10.0-1160.rt56.1131.el7, kernel-rt-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace 3.10.0-1160.rt56.1131.el7, kernel-rt-debug-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-trace-kvm 3.10.0-1160.rt56.1131.el7, kernel-rt-debuginfo-common-x86_64 3.10.0-1160.rt56.1131.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4062
show 7 more
  • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt 4.18.0-240.rt7.54.el8, kernel-rt-core 4.18.0-240.rt7.54.el8, kernel-rt-modules 4.18.0-240.rt7.54.el8, kernel-rt-debug-core 4.18.0-240.rt7.54.el8, kernel-rt-debug-modules 4.18.0-240.rt7.54.el8, kernel-rt-modules-extra 4.18.0-240.rt7.54.el8, +2 more Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt 4.18.0-240.rt7.54.el8, kernel-rt-kvm 4.18.0-240.rt7.54.el8, kernel-rt-core 4.18.0-240.rt7.54.el8, kernel-rt-modules 4.18.0-240.rt7.54.el8, kernel-rt-debug-kvm 4.18.0-240.rt7.54.el8, kernel-rt-debug-core 4.18.0-240.rt7.54.el8, +4 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4609
  • Red Hat Enterprise Linux Server (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-kdump 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4060
  • Red Hat Enterprise Linux Server EUS (v. 7.7) perf 3.10.0-1062.43.1.el7, kernel 3.10.0-1062.43.1.el7, bpftool 3.10.0-1062.43.1.el7, python-perf 3.10.0-1062.43.1.el7, kernel-kdump 3.10.0-1062.43.1.el7, kernel-tools 3.10.0-1062.43.1.el7, +7 more
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2021:0019
  • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debuginfo-common-ppc64 3.10.0-1160.el7, kernel-debuginfo-common-x86_64 3.10.0-1160.el7, kernel-debuginfo-common-ppc64le 3.10.0-1160.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4060
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debuginfo-common-ppc64 3.10.0-1062.43.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.43.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.43.1.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2021:0019
  • Red Hat Enterprise Linux Workstation (v. 7) perf 3.10.0-1160.el7, kernel 3.10.0-1160.el7, bpftool 3.10.0-1160.el7, python-perf 3.10.0-1160.el7, kernel-tools 3.10.0-1160.el7, kernel-tools-libs 3.10.0-1160.el7, +2 more Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1160.el7
    fixed: vendor fix “To mitigate this issue, prevent module hci_uart from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.” RHSA-2020:4060
  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) kernel-headers 3.10.0-1062.43.1.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-headers 4.14.0-115.26.1.el7a Red Hat Enterprise Linux Server EUS (v. 7.7) kernel-headers 3.10.0-1062.43.1.el7
    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

0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds

References

Sources

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.