CVE-2019-19537

kernel: race condition caused by a malicious USB device in the USB character device driver layer

Severity Score

4.2

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In the Linux kernel before 5.2.10, there is a race condition bug that can be caused by a malicious USB device in the USB character device driver layer, aka CID-303911cfc5b9. This affects drivers/usb/core/file.c.

En el kernel de Linux versiones anteriores a 5.2.10, se presenta un bug de condición de carrera que puede ser causado por un dispositivo USB malicioso en la capa del controlador del dispositivo de caracteres USB, también se conoce como CID-303911cfc5b9. Esto afecta al archivo drivers/usb/core/file.c.

A flaw was found in the Linux kernel, where there is a race condition bug that can be caused by a malicious USB device in the USB character device driver layer. An attacker who can hotplug at least two devices of this class can cause a use-after-free situation.

*Credits: N/A

Attack Vector

Physical

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-03 CVE Reserved
2019-12-03 CVE Published
2024-08-05 CVE Updated
2024-11-26 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2019/12/03/4	Mailing List
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=303911cfc5b95d33687d9046133ff184cf5043ff	2020-01-18

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html	2020-01-18
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.10	2020-01-18
https://access.redhat.com/security/cve/CVE-2019-19537	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1783561	2020-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.2.10 Search vendor "Linux" for product "Linux Kernel" and version " < 5.2.10"		-		Affected