CVE-2018-20169 json
An issue was discovered in the Linux kernel before 4.19.9.
published 2018-12-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-12737
- cvss
- 6.8
- 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 48%
- public exploits
- 0
- none known
Summary
An issue was discovered in the Linux kernel before 4.19.9. The USB subsystem mishandles size checks during the reading of an extra descriptor, related to __usb_get_extra_descriptor in drivers/usb/core/usb.c.
Patch / fix
- linux linux_kernel 3.16.63, 3.18.129, 4.4.167, 4.9.145, 4.14.88, 4.19.9
- linux Debian 14, Debian 13, Debian 12 4.19.9-1
debian advisories DEBIAN-CVE-2018-20169
- linux Ubuntu 16.04 LTS 4.4.0-142.168
- linux Ubuntu 18.04 LTS 4.15.0-58.64
- linux-aws Ubuntu 14.04 LTS 4.4.0-1038.41
- linux-aws Ubuntu 16.04 LTS 4.4.0-1075.85
- linux-aws Ubuntu 18.04 LTS 4.15.0-1047.49
- linux-gcp Ubuntu 16.04 LTS 4.15.0-1040.42~16.04.1
- linux-gcp Ubuntu 18.04 LTS 4.15.0-1040.42
- linux-hwe Ubuntu 16.04 LTS 4.15.0-58.64~16.04.1
ubuntu advisories UBUNTU-CVE-2018-20169
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-2020:2851RHSA-2020:2522RHSA-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
- kernel CBL-Mariner 2.0 5.15.148.2-2
- kernel Azure Linux 3.0 6.6.22.1-2
azure linux advisories AZL-34325AZL-34851
Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT
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-2018-20169 updated cvss 6.4
kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS
-
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 7 perf, kernel, kernel-alt, python-perf, kernel-kdump, kernel-tools, +3 moreaffected: 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 morefixed: 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 morefixed: vendor fix RHSA-2020:1016
-
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) perf 3.10.0-957.56.1.el7, kernel 3.10.0-957.56.1.el7, bpftool 3.10.0-957.56.1.el7, python-perf 3.10.0-957.56.1.el7, kernel-tools 3.10.0-957.56.1.el7, kernel-tools-libs 3.10.0-957.56.1.el7, +2 morefixed: vendor fix RHSA-2020:2851
-
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) perf 3.10.0-1062.26.1.el7, kernel 3.10.0-1062.26.1.el7, bpftool 3.10.0-1062.26.1.el7, python-perf 3.10.0-1062.26.1.el7, kernel-tools 3.10.0-1062.26.1.el7, kernel-tools-libs 3.10.0-1062.26.1.el7, +2 morefixed: vendor fix RHSA-2020:2522
-
Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-debuginfo-common-x86_64 3.10.0-1127.el7fixed: vendor fix RHSA-2020:1016
-
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-debuginfo-common-x86_64 3.10.0-957.56.1.el7fixed: vendor fix RHSA-2020:2851
-
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-debuginfo-common-x86_64 3.10.0-1062.26.1.el7fixed: vendor fix RHSA-2020:2522
show 15 moreshow fewer
-
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.el7fixed: 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 morefixed: 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 morefixed: vendor fix RHSA-2020:1016
-
Red Hat Enterprise Linux Server AUS (v. 7.4) perf 3.10.0-693.69.1.el7, kernel 3.10.0-693.69.1.el7, python-perf 3.10.0-693.69.1.el7, kernel-tools 3.10.0-693.69.1.el7, kernel-tools-libs 3.10.0-693.69.1.el7, kernel-abi-whitelists 3.10.0-693.69.1.el7, +1 more Red Hat Enterprise Linux Server E4S (v. 7.4) perf 3.10.0-693.69.1.el7, kernel 3.10.0-693.69.1.el7, python-perf 3.10.0-693.69.1.el7, kernel-tools 3.10.0-693.69.1.el7, kernel-tools-libs 3.10.0-693.69.1.el7, kernel-bootwrapper 3.10.0-693.69.1.el7, +3 morefixed: vendor fix RHSA-2020:2770
-
Red Hat Enterprise Linux Server EUS (v. 7.6) perf 3.10.0-957.56.1.el7, kernel 3.10.0-957.56.1.el7, bpftool 3.10.0-957.56.1.el7, python-perf 3.10.0-957.56.1.el7, kernel-kdump 3.10.0-957.56.1.el7, kernel-tools 3.10.0-957.56.1.el7, +7 morefixed: vendor fix RHSA-2020:2851
-
Red Hat Enterprise Linux Server EUS (v. 7.7) perf 3.10.0-1062.26.1.el7, kernel 3.10.0-1062.26.1.el7, bpftool 3.10.0-1062.26.1.el7, python-perf 3.10.0-1062.26.1.el7, kernel-kdump 3.10.0-1062.26.1.el7, kernel-tools 3.10.0-1062.26.1.el7, +7 morefixed: vendor fix RHSA-2020:2522
-
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.el7fixed: vendor fix RHSA-2020:1016
-
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.69.1.el7 Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.69.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-693.69.1.el7fixed: vendor fix RHSA-2020:2770
-
Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debuginfo-common-ppc64 3.10.0-957.56.1.el7, kernel-debuginfo-common-x86_64 3.10.0-957.56.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-957.56.1.el7fixed: vendor fix RHSA-2020:2851
-
Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debuginfo-common-ppc64 3.10.0-1062.26.1.el7, kernel-debuginfo-common-x86_64 3.10.0-1062.26.1.el7, kernel-debuginfo-common-ppc64le 3.10.0-1062.26.1.el7fixed: vendor fix RHSA-2020:2522
-
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-debuginfo-common-x86_64 3.10.0-693.69.1.el7 Red Hat Enterprise Linux Server TUS (v. 7.4) perf 3.10.0-693.69.1.el7, kernel 3.10.0-693.69.1.el7, python-perf 3.10.0-693.69.1.el7, kernel-tools 3.10.0-693.69.1.el7, kernel-tools-libs 3.10.0-693.69.1.el7, kernel-abi-whitelists 3.10.0-693.69.1.el7, +1 morefixed: vendor fix RHSA-2020:2770
-
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.el7fixed: vendor fix RHSA-2020:1016
-
Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-trace 3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-vanilla 3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-firmware 3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-debuginfo-common-x86_64 3.10.0-693.69.1.rt56.667.el6rtfixed: vendor fix RHSA-2020:2777
-
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS perf 3.10.0-957.56.1.el7, python-perf 3.10.0-957.56.1.el7fixed: vendor fix RHSA-2020:2851
-
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) kernel-headers 3.10.0-957.56.1.el7 Red Hat Enterprise Linux Server EUS (v. 7.6) kernel-headers 3.10.0-957.56.1.el7 Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-headers 3.10.0-957.56.1.el7not 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
0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.8 | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
- Technology feeds
References
-
git.kernel.org
/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cf
mailing-list, patch, vendor-advisory
-
github.com
/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cf
patch, third-party-advisory
-
cdn.kernel.org
/pub/linux/kernel/v4.x/ChangeLog-4.19.9
mailing-list, patch, vendor-advisory
-
usn.ubuntu.com
/3879-2/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/3879-1/
vendor-advisory, third-party-advisory
-
usn.ubuntu.com
/4094-1/
vendor-advisory, third-party-advisory, vdb-entry
-
usn.ubuntu.com
/4118-1/
vendor-advisory, third-party-advisory, vdb-entry
-
access.redhat.com
/errata/RHSA-2019:3309
vendor-advisory, third-party-advisory, vdb-entry
-
access.redhat.com
/errata/RHSA-2019:3517
vendor-advisory, third-party-advisory, vdb-entry
-
lists.debian.org
/debian-lts-announce/2019/03/msg00034.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/04/msg00004.html
mailing-list, third-party-advisory
-
lists.debian.org
/debian-lts-announce/2019/05/msg00002.html
mailing-list, third-party-advisory
Sources
- CVE List CVE-2018-20169
- NVD CVE-2018-20169
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.