Vulnerability DatabaseCVE-2018-20169
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CVE-2018-20169
Published:December 17, 2018
Updated:May 17, 2026
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.
Related Resources (15)
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html
https://usn.ubuntu.com/4094-1/
https://people.canonical.com/~ubuntu-security/cve/CVE-2018-20169
https://access.redhat.com/security/cve/CVE-2018-20169
https://usn.ubuntu.com/3879-2/
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html
https://access.redhat.com/errata/RHSA-2019:3309
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9
https://usn.ubuntu.com/4118-1/
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cf
https://access.redhat.com/errata/RHSA-2019:3517
https://security-tracker.debian.org/tracker/CVE-2018-20169
https://github.com/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cf
https://usn.ubuntu.com/3879-1/
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CVSS v4
Base Score:
7
Attack Vector
PHYSICAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.8
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Uncontrolled Resource Consumption
CWE-400
EPSS
Base Score:
0.12