CVE-2018-20169

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.

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 7.2 HIGH

6.8^/10

CVSS v3.0 : MEDIUM

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

Exploitability : 0.9 / Impact : 5.9

Attack Vector PHYSICAL

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.2^/10

CVSS v2.0 : HIGH

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

Exploitability : 3.9 / Impact : 10.0

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/torvalds/linux/commit/704620afc70cf47abb9d6a1a57f3825d2bca49cf	Patch Third Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.9	Mailing List Patch Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=704620afc70cf47abb9d6a1a57f3825d2bca49cf	Mailing List Patch Vendor Advisory
https://usn.ubuntu.com/3879-2/	Third Party Advisory
https://usn.ubuntu.com/3879-1/	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/03/msg00034.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/04/msg00004.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/05/msg00002.html	Mailing List Third Party Advisory
https://usn.ubuntu.com/4094-1/
https://usn.ubuntu.com/4118-1/
https://access.redhat.com/errata/RHSA-2019:3517
https://access.redhat.com/errata/RHSA-2019:3309

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Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR	cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts:::
	cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts:::

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2018-12-16 23:29

Updated : 2019-08-13 12:15

NVD link : CVE-2018-20169

Mitre link : CVE-2018-20169

JSON object : View

CWE

CWE-400

Uncontrolled Resource Consumption

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Products Affected

debian

debian_linux

canonical

ubuntu_linux

linux

linux_kernel

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