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CVE-2021-3659

Date: August 22, 2022

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.

Severity Score

Related Resources (7)

https://bugzilla.redhat.com/show_bug.cgi?id=1975949
https://nvd.nist.gov/vuln/detail/CVE-2021-3659
https://security-tracker.debian.org/tracker/CVE-2021-3659
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8
https://people.canonical.com/~ubuntu-security/cve/CVE-2021-3659
https://access.redhat.com/security/cve/CVE-2021-3659
https://www.mend.io/vulnerability-database/CVE-2021-3659

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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