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TI-2018-14291 Aliases CVE-2018-20169GHSA-xv8v-5726-pq4v

An issue was discovered in the Linux kernel before 4.19.9.

Priority LOW 31CWE-400Published · Updated

Key facts

Attack vector
Physical
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 30 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-400.

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.

Why it matters now

EPSS 0.00581 47th percentileScored 2026-11-07
Fix Partial Red Hat: 8 advisoriesRed Hat: 30 fixed, 3 without a fix

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*before 3.16.63; 3.17 to before 3.18.129; 3.19 to before 4.4.167; 4.5 to before 4.9.145; 4.10 to before 4.14.88; 4.15 to before 4.19.9VulnerableLinux
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*14.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*16.04VulnerableCanonical
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions before 3.16.63; 3.17 to before 3.18.129; 3.19 to before 4.4.167; 4.5 to before 4.9.145; 4.10 to before 4.14.88; 4.15 to before 4.19.9 Vulnerable ·Linux
  • cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Versions 14.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* Versions 16.04 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian

Remediation

Red Hat 8 advisories

  • RHSA-2020:2851 Released 2020-07-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6) bpftool-3.10.0-957.56.1.el7, kernel-3.10.0-957.56.1.el7, kernel-abi-whitelists-3.10.0-957.56.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.56.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.6) bpftool-3.10.0-957.56.1.el7, kernel-3.10.0-957.56.1.el7, kernel-abi-whitelists-3.10.0-957.56.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.6) kernel-debug-devel-3.10.0-957.56.1.el7, kernel-tools-libs-devel-3.10.0-957.56.1.el7
    • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS kernel-devel-3.10.0-957.56.1.el7, perf-3.10.0-957.56.1.el7, python-perf-3.10.0-957.56.1.el7
  • RHSA-2020:2777 Released 2020-07-01 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt-1:3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-debug-1:3.10.0-693.69.1.rt56.667.el6rt, kernel-rt-debug-devel-1:3.10.0-693.69.1.rt56.667.el6rt +7
  • RHSA-2020:2770 Released 2020-06-30 · Red Hat rating Moderate
    kernel security and bug fix update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.69.1.el7, kernel-abi-whitelists-3.10.0-693.69.1.el7, kernel-debug-3.10.0-693.69.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.4) kernel-3.10.0-693.69.1.el7, kernel-abi-whitelists-3.10.0-693.69.1.el7, kernel-bootwrapper-3.10.0-693.69.1.el7 +9
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.69.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.4) kernel-debug-devel-3.10.0-693.69.1.el7, kernel-tools-libs-devel-3.10.0-693.69.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.69.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.4) kernel-3.10.0-693.69.1.el7, kernel-abi-whitelists-3.10.0-693.69.1.el7, kernel-debug-3.10.0-693.69.1.el7 +8
Show 5 more Red Hat advisories
  • RHSA-2020:2522 Released 2020-06-11 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux ComputeNode EUS (v. 7.7) bpftool-3.10.0-1062.26.1.el7, kernel-3.10.0-1062.26.1.el7, kernel-abi-whitelists-3.10.0-1062.26.1.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.26.1.el7
    • Red Hat Enterprise Linux Server EUS (v. 7.7) bpftool-3.10.0-1062.26.1.el7, kernel-3.10.0-1062.26.1.el7, kernel-abi-whitelists-3.10.0-1062.26.1.el7 +11
    • Red Hat Enterprise Linux Server Optional EUS (v. 7.7) kernel-debug-devel-3.10.0-1062.26.1.el7, kernel-tools-libs-devel-3.10.0-1062.26.1.el7
  • RHSA-2020:1070 Released 2020-03-31 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1127.rt56.1093.el7, kernel-rt-debug-3.10.0-1127.rt56.1093.el7, kernel-rt-debug-devel-3.10.0-1127.rt56.1093.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1127.rt56.1093.el7, kernel-rt-debug-3.10.0-1127.rt56.1093.el7, kernel-rt-debug-devel-3.10.0-1127.rt56.1093.el7 +7
  • RHSA-2020:1016 Released 2020-03-31 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux ComputeNode (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1127.el7, kernel-tools-libs-devel-3.10.0-1127.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1127.el7, kernel-3.10.0-1127.el7, kernel-abi-whitelists-3.10.0-1127.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1127.el7
  • RHSA-2019:3517 Released 2019-11-05 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-147.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-147.el8, kernel-4.18.0-147.el8, kernel-abi-whitelists-4.18.0-147.el8 +19
  • RHSA-2019:3309 Released 2019-11-05 · Red Hat rating Important
    kernel-rt security and bug fix update
    • 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-debug-4.18.0-147.rt24.93.el8 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-147.rt24.93.el8, kernel-rt-core-4.18.0-147.rt24.93.el8, kernel-rt-debug-4.18.0-147.rt24.93.el8 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2019:3517
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2019:3517
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux ComputeNode EUS (v. 7.7)Fixed RHSA-2020:2522
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.7)Fixed RHSA-2020:2522
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2019:3309
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2019:3309
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Server E4S (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:2522
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Server Optional E4S (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Server Optional EUS (v. 7.6)Fixed RHSA-2020:2851
Red Hat Enterprise Linux Server Optional EUS (v. 7.7)Fixed RHSA-2020:2522
Red Hat Enterprise Linux Server Optional TUS (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Server TUS (v. 7.4)Fixed RHSA-2020:2770
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:1016
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2020:1070
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2020:1070
Red Hat MRG Realtime for RHEL 6 Server v.2Fixed RHSA-2020:2777
Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUSFixed RHSA-2020:2851
Not affected: 3 products
  • Red Hat Enterprise Linux ComputeNode EUS (v. 7.6)
  • Red Hat Enterprise Linux Server EUS (v. 7.6)
  • Red Hat Virtualization 4.2 Hypervisor for RHEL 7.6 EUS

Timeline

  1. 2026-10-02 Threatist record created from CVE-2018-20169
  2. 2026-10-03 Alias added: GHSA-xv8v-5726-pq4v

References

Patch 3

Advisory 9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences