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Fencer Intel
medium 4.6

CVE-2018-19985 json

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and…

published 2019-03-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-11652

cvss
4.6
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

The function hso_get_config_data in drivers/net/usb/hso.c in the Linux kernel through 4.19.8 reads if_num from the USB device (as a u8) and uses it to index a small array, resulting in an object out-of-bounds (OOB) read that potentially allows arbitrary read in the kernel address space.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 4.19.13-1

debian advisories DEBIAN-CVE-2018-19985

  • linux Ubuntu 16.04 LTS 4.4.0-143.169
  • linux Ubuntu 18.04 LTS 4.15.0-60.67
  • linux-aws Ubuntu 14.04 LTS 4.4.0-1039.42
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1077.87
  • 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

ubuntu advisories UBUNTU-CVE-2018-19985

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-2020:1016RHSA-2019:3517RHSA-2020:1070RHSA-2019:3309

  • kernel-ec2 SLE Module for Public Cloud 12 3.12.74-60.64.110.1
  • ocfs2 SLE Real Time 11 SP4, SLE High Availability Extension 11 SP4 1.6-0.28.7.1
  • kernel-ec2 SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1
  • kernel-pae SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1
  • kernel-xen SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1
  • kernel-syms SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1
  • kernel-ppc64 SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1
  • kernel-trace SLES for SAP 11 SP4, SLES 11 SP4 3.0.101-108.87.1

suse advisories SUSE-SU-2019:1289-1SUSE-SU-2019:13979-1SUSE-SU-2019:0541-1SUSE-SU-2019:0439-1SUSE-SU-2019:0320-1SUSE-SU-2019:0224-1

  • kernel-source openSUSE Leap 15.0 4.12.14-lp150.12.45.1

opensuse advisories openSUSE-SU-2019:0065-1

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-2018-19985 updated cvss 4.6

kernel: oob memory read in hso_probe in drivers/net/usb/hso.c

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 more
    affected: no fix available “Fix deferred”
  • 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 MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    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

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 4.6 CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel 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.