CVE-2018-20169

HIGH

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

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

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

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

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

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

Details

Source: MITRE

Published: 2018-12-17

Modified: 2019-02-05

Type: CWE-400

Risk Information

CVSS v2.0

Base Score: 7.2

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

Impact Score: 10

Exploitability Score: 3.9

Severity: HIGH

CVSS v3.0

Base Score: 6.8

Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 0.9

Severity: MEDIUM