CVE-2019-16233

kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c

Severity Score

4.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

drivers/scsi/qla2xxx/qla_os.c in the Linux kernel 5.2.14 does not check the alloc_workqueue return value, leading to a NULL pointer dereference.

El archivo drivers/scsi/qla2xxx/qla_os.c en el kernel de Linux versión 5.2.14, no comprueba el valor de retorno en alloc_workqueue, conllevando a una desreferencia del puntero NULL.

A flaw was found in the Linux kernel. A NULL pointer dereference flaw was found in the QLOGIC drivers for HBA. A call to alloc_workqueue return was not validated and can cause a denial of service. The highest threat from this vulnerability is to system availability.

*Credits: N/A

Attack Vector

Local

Attack Complexity

High

Privileges Required

High

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

2019-09-11 CVE Reserved
2019-09-11 CVE Published
2024-08-05 CVE Updated
2024-09-04 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (10)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20191004-0001	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://lkml.org/lkml/2019/9/9/487	2020-05-06

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00010.html	2020-05-06
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00035.html	2020-05-06
https://usn.ubuntu.com/4226-1	2020-05-06
https://usn.ubuntu.com/4227-1	2020-05-06
https://usn.ubuntu.com/4227-2	2020-05-06
https://usn.ubuntu.com/4346-1	2020-05-06
https://access.redhat.com/security/cve/CVE-2019-16233	2020-11-04
https://bugzilla.redhat.com/show_bug.cgi?id=1760420	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"				5.2.14 Search vendor "Linux" for product "Linux Kernel" and version "5.2.14"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		esm		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				19.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "19.04"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.0 Search vendor "Opensuse" for product "Leap" and version "15.0"		-		Affected
Opensuse Search vendor "Opensuse"		Leap Search vendor "Opensuse" for product "Leap"				15.1 Search vendor "Opensuse" for product "Leap" and version "15.1"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				7.0 Search vendor "Redhat" for product "Enterprise Linux" and version "7.0"		-		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected