Is CVE-2021-3659 in the CISA KEV catalog?

No. CVE-2021-3659 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3659?

CVE-2021-3659 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-3659?

CVE-2021-3659 has an EPSS score of 0.26% (18th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3659?

Upgrade linux on debian 11 to 5.10.38-1 or later. Fixes are available for 18 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3659

MEDIUM

5.5

CVSS v3

NVD

Description

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.

CWE-252 CWE-476NULL Pointer Dereference

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.38-1CVE-2021-3659

linuxUbuntu

Fixed in:4.4.0-239.273USN-6014-1

linux-awsUbuntu

Fixed in:4.4.0-1117.123USN-6013-1

Fixed in:4.4.0-1155.170USN-6001-1

linux-image-4.4.0-1117-awsUbuntu

Fixed in:4.4.0-1117.123USN-6013-1

linux-image-4.4.0-1118-kvmUbuntu

Fixed in:4.4.0-1118.128USN-6014-1

linux-image-4.4.0-1155-awsUbuntu

Fixed in:4.4.0-1155.170USN-6001-1

linux-image-4.4.0-239-genericUbuntu

Fixed in:4.4.0-239.273~14.04.1USN-6014-1

Fixed in:4.4.0-239.273USN-6014-1

linux-image-4.4.0-239-lowlatencyUbuntu

Fixed in:4.4.0-239.273~14.04.1USN-6014-1

Fixed in:4.4.0-239.273USN-6014-1

linux-image-awsUbuntu

Fixed in:4.4.0.1117.114USN-6013-1

Fixed in:4.4.0.1155.159USN-6001-1

linux-image-genericUbuntu

Fixed in:4.4.0.239.245USN-6014-1

linux-image-generic-lts-xenialUbuntu

Fixed in:4.4.0.239.207USN-6014-1

Fixed in:4.4.0.239.245USN-6014-1

linux-image-kvmUbuntu

Fixed in:4.4.0.1118.115USN-6014-1

linux-image-lowlatencyUbuntu

Fixed in:4.4.0.239.245USN-6014-1

linux-image-lowlatency-lts-xenialUbuntu

Fixed in:4.4.0.239.207USN-6014-1

Fixed in:4.4.0.239.245USN-6014-1

linux-image-virtualUbuntu

Fixed in:4.4.0.239.245USN-6014-1

linux-image-virtual-lts-xenialUbuntu

Fixed in:4.4.0.239.207USN-6014-1

Fixed in:4.4.0.239.245USN-6014-1

linux-kvmUbuntu

Fixed in:4.4.0-1118.128USN-6014-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-239.273~14.04.1USN-6014-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

0.26%probability of exploitation in 30 days

18thpercentile

Low risk: more likely to be exploited than 18% of all known CVEs.

References

Patch2

Third-Party Advisory1

access.redhat.com

Related Vulnerabilities

Other CWE-252 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2005-4360	High	7.8	87%	-	-
CVE-2007-3798	Critical	9.8	70%	-	Fix
CVE-2010-0211	Critical	9.8	29%	-	Fix
CVE-2022-23626	High	8.5	9.9%	-	Fix
CVE-2019-10902	High	7.5	4.7%	-	-
CVE-2018-20216	High	7.5	3.9%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.