Detections
Analytics

CVE-2018-20169

medium

Description

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.

References

https://usn.ubuntu.com/4118-1/

https://usn.ubuntu.com/4094-1/

https://usn.ubuntu.com/3879-2/

https://usn.ubuntu.com/3879-1/

https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html

https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html

https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html

https://github.com/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cf

https://access.redhat.com/errata/RHSA-2019:3517

https://access.redhat.com/errata/RHSA-2019:3309

https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-12737

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cf

Details

Source: Mitre, NVD

Published: 2018-12-17

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.8

Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Medium

EPSS

EPSS: 0.00085