CVE-2021-3659

A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.

CVSS v3.0 5.5 MEDIUM

5.5^/10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2021-3659	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1975949	Issue Tracking Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

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

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_real_time:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_aus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_tus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_server_eus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_real_time_tus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_real_time_for_nfv_tus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*

Configuration 4 (hide)

AND

cpe:2.3:a:redhat:codeready_linux_builder:-:*:*:*:*:*:*:*

OR	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*
	cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:8.6:::::::*

Configuration 5 (hide)

AND

cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:*

cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*

Information

Published : 2022-08-22 08:15

Updated : 2022-08-23 11:41

NVD link : CVE-2021-3659

Mitre link : CVE-2021-3659

JSON object : View

CWE

CWE-476

NULL Pointer Dereference

Products Affected

redhat

enterprise_linux_for_power_little_endian
enterprise_linux
enterprise_linux_server_aus
enterprise_linux_for_real_time_tus
enterprise_linux_for_ibm_z_systems
enterprise_linux_for_real_time_for_nfv_tus
enterprise_linux_for_real_time_for_nfv
codeready_linux_builder
enterprise_linux_for_ibm_z_systems_eus
enterprise_linux_server_tus
enterprise_linux_eus
enterprise_linux_server_eus
virtualization_host
enterprise_linux_for_power_little_endian_eus
enterprise_linux_for_real_time

fedoraproject

fedora

linux

linux_kernel

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5.5 /10