CVE-2020-11668

kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c

Severity Score

7.1

*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 5.6.1, drivers/media/usb/gspca/xirlink_cit.c (aka the Xirlink camera USB driver) mishandles invalid descriptors, aka CID-a246b4d54770.

En el archivo drivers/media/usb/gspca/xirlink_cit.c de kernel de Linux versiones anteriores a 5.6.1, (también se conoce como el controlador USB de la cámara Xirlink) maneja inapropiadamente los descriptores no válidos, también se conoce como CID-a246b4d54770.

A NULL pointer dereference flaw was found in the Xirlink camera USB driver 'xirlink-cit' in the Linux kernel. The driver mishandles invalid descriptors leading to a denial-of-service (DoS). This could allow a local attacker with user privilege to crash the system or leak kernel internal information.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-04-09 CVE Reserved
2020-04-09 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (14)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	Mailing List
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	Mailing List
https://security.netapp.com/advisory/ntap-20200430-0004	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=a246b4d547708f33ff4d4b9a7a5dbac741dc89d8	2020-06-10
https://github.com/torvalds/linux/commit/a246b4d547708f33ff4d4b9a7a5dbac741dc89d8	2020-06-10

URL	Date	SRC
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.1	2020-06-10
https://usn.ubuntu.com/4345-1	2020-06-10
https://usn.ubuntu.com/4364-1	2020-06-10
https://usn.ubuntu.com/4368-1	2020-06-10
https://usn.ubuntu.com/4369-1	2020-06-10
https://www.debian.org/security/2020/dsa-4698	2020-06-10
https://access.redhat.com/security/cve/CVE-2020-11668	2021-07-21
https://bugzilla.redhat.com/show_bug.cgi?id=1824792	2021-07-21

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"				< 5.6.1 Search vendor "Linux" for product "Linux Kernel" and version " < 5.6.1"		-		Affected