CVE-2019-20095

kernel: memory leak in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c in the Linux kernel before 5.1.6 has some error-handling cases that did not free allocated hostcmd memory, aka CID-003b686ace82. This will cause a memory leak and denial of service.

La función mwifiex_tm_cmd en el archivo drivers/net/wireless/marvell/mwifiex/cfg80211.c en el kernel de Linux versiones anteriores a la versión 5.1.6 tiene algunos casos de manejo de errores que no liberaron la memoria hostcmd asignada, también se conoce como CID-003b686ace82. Esto causará una pérdida de memoria y una denegación de servicio.

A flaw was found in the Linux kernel's mwifiex driver implementation when connecting to other WiFi devices in "Test Mode." A kernel memory leak can occur if an error condition is met during the parameter negotiation. This issue can lead to a denial of service if multiple error conditions meeting the repeated connection attempts are attempted.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-12-30 CVE Reserved
2019-12-30 CVE Published
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-401: Missing Release of Memory after Effective Lifetime
CWE-772: Missing Release of Resource after Effective Lifetime

CAPEC

References (6)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20200204-0002	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html	2022-04-18
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.6	2022-04-18
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=003b686ace820ce2d635a83f10f2d7f9c147dabc	2022-04-18
https://access.redhat.com/security/cve/CVE-2019-20095	2020-09-29
https://bugzilla.redhat.com/show_bug.cgi?id=1791954	2020-09-29

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Netapp Search vendor "Netapp"	A700s Firmware Search vendor "Netapp" for product "A700s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	A700s Search vendor "Netapp" for product "A700s"	-	-	Safe
Netapp Search vendor "Netapp"	8300 Firmware Search vendor "Netapp" for product "8300 Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	8300 Search vendor "Netapp" for product "8300"	-	-	Safe
Netapp Search vendor "Netapp"	8700 Firmware Search vendor "Netapp" for product "8700 Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	8700 Search vendor "Netapp" for product "8700"	-	-	Safe
Netapp Search vendor "Netapp"	A400 Firmware Search vendor "Netapp" for product "A400 Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	A400 Search vendor "Netapp" for product "A400"	-	-	Safe
Netapp Search vendor "Netapp"	H610s Firmware Search vendor "Netapp" for product "H610s Firmware"	-	-	Affected	in	Netapp Search vendor "Netapp"	H610s Search vendor "Netapp" for product "H610s"	-	-	Safe
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 5.1.6 Search vendor "Linux" for product "Linux Kernel" and version " < 5.1.6"		-		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
Netapp Search vendor "Netapp"		Active Iq Unified Manager Search vendor "Netapp" for product "Active Iq Unified Manager"				-		vmware_vsphere		Affected
Netapp Search vendor "Netapp"		Cloud Backup Search vendor "Netapp" for product "Cloud Backup"				-		-		Affected
Netapp Search vendor "Netapp"		Data Availability Services Search vendor "Netapp" for product "Data Availability Services"				-		-		Affected
Netapp Search vendor "Netapp"		E-series Santricity Os Controller Search vendor "Netapp" for product "E-series Santricity Os Controller"				>= 11.0.0 <= 11.70.1 Search vendor "Netapp" for product "E-series Santricity Os Controller" and version " >= 11.0.0 <= 11.70.1"		-		Affected
Netapp Search vendor "Netapp"		Hci Management Node Search vendor "Netapp" for product "Hci Management Node"				-		-		Affected
Netapp Search vendor "Netapp"		Solidfire Search vendor "Netapp" for product "Solidfire"				-		-		Affected
Netapp Search vendor "Netapp"		Steelstore Cloud Integrated Storage Search vendor "Netapp" for product "Steelstore Cloud Integrated Storage"				-		-		Affected