Is CVE-2021-3600 in the CISA KEV catalog?

No. CVE-2021-3600 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3600?

CVE-2021-3600 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-3600?

CVE-2021-3600 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3600?

Upgrade linux on debian 11 to 5.10.19-1 or later. Fixes are available for 56 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3600

HIGH

7.8

CVSS v3

NVD

Description

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.

CWE-125Out-of-bounds Read CWE-787Out-of-bounds Write

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.19-1CVE-2021-3600

gcpUbuntu

Fixed in:5.4.0-1009LSN-0079-1

generic-4.15Ubuntu

Fixed in:4.15.0-69LSN-0079-1

generic-4.4Ubuntu

Fixed in:4.4.0-168LSN-0079-1

generic-5.4Ubuntu

Fixed in:5.4.0-26LSN-0079-1

gkeUbuntu

Fixed in:5.4.0-1033LSN-0079-1

gke-4.15Ubuntu

Fixed in:4.15.0-1076LSN-0079-1

gke-5.4Ubuntu

Fixed in:5.4.0-1009LSN-0079-1

gkeopUbuntu

Fixed in:5.4.0-1009LSN-0079-1

gkeop-5.4Ubuntu

Fixed in:5.4.0-1007LSN-0079-1

linuxUbuntu

Fixed in:4.15.0-147.151USN-5003-1

linux-awsUbuntu

Fixed in:4.15.0-1106.113USN-5003-1

linux-aws-hweUbuntu

Fixed in:4.15.0-1106.113~16.04.1USN-5003-1

linux-azureUbuntu

Fixed in:4.15.0-1118.131~14.04.1USN-5003-1

Fixed in:4.15.0-1118.131~16.04.1USN-5003-1

linux-azure-4.15Ubuntu

Fixed in:4.15.0-1118.131USN-5003-1

linux-dell300xUbuntu

Fixed in:4.15.0-1022.26USN-5003-1

linux-gcpUbuntu

Fixed in:4.15.0-1103.116~16.04.1USN-5003-1

linux-gcp-4.15Ubuntu

Fixed in:4.15.0-1103.116USN-5003-1

linux-hweUbuntu

Fixed in:4.15.0-147.151~16.04.1USN-5003-1

linux-image-4.15.0-1022-dell300xUbuntu

Fixed in:4.15.0-1022.26USN-5003-1

linux-image-4.15.0-1075-oracleUbuntu

Fixed in:4.15.0-1075.83~16.04.1USN-5003-1

Fixed in:4.15.0-1075.83USN-5003-1

linux-image-4.15.0-1089-raspi2Ubuntu

Fixed in:4.15.0-1089.94USN-5003-1

linux-image-4.15.0-1103-gcpUbuntu

Fixed in:4.15.0-1103.116~16.04.1USN-5003-1

Fixed in:4.15.0-1103.116USN-5003-1

linux-image-4.15.0-1106-awsUbuntu

Fixed in:4.15.0-1106.113~16.04.1USN-5003-1

Fixed in:4.15.0-1106.113USN-5003-1

linux-image-4.15.0-1106-snapdragonUbuntu

Fixed in:4.15.0-1106.115USN-5003-1

linux-image-4.15.0-1118-azureUbuntu

Fixed in:4.15.0-1118.131~14.04.1USN-5003-1

Fixed in:4.15.0-1118.131~16.04.1USN-5003-1

Fixed in:4.15.0-1118.131USN-5003-1

linux-image-4.15.0-147-genericUbuntu

Fixed in:4.15.0-147.151~16.04.1USN-5003-1

Fixed in:4.15.0-147.151USN-5003-1

linux-image-4.15.0-147-generic-lpaeUbuntu

Fixed in:4.15.0-147.151USN-5003-1

linux-image-4.15.0-147-lowlatencyUbuntu

Fixed in:4.15.0-147.151~16.04.1USN-5003-1

Fixed in:4.15.0-147.151USN-5003-1

linux-image-aws-hweUbuntu

Fixed in:4.15.0.1106.97USN-5003-1

linux-image-aws-lts-18.04Ubuntu

Fixed in:4.15.0.1106.109USN-5003-1

linux-image-azureUbuntu

Fixed in:4.15.0.1118.91USN-5003-1

Fixed in:4.15.0.1118.109USN-5003-1

linux-image-azure-lts-18.04Ubuntu

Fixed in:4.15.0.1118.91USN-5003-1

linux-image-dell300xUbuntu

Fixed in:4.15.0.1022.24USN-5003-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1103.104USN-5003-1

linux-image-gcp-lts-18.04Ubuntu

Fixed in:4.15.0.1103.121USN-5003-1

linux-image-genericUbuntu

Fixed in:4.15.0.147.134USN-5003-1

linux-image-generic-hwe-16.04Ubuntu

Fixed in:4.15.0.147.143USN-5003-1

linux-image-generic-lpaeUbuntu

Fixed in:4.15.0.147.134USN-5003-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1103.104USN-5003-1

linux-image-lowlatencyUbuntu

Fixed in:4.15.0.147.134USN-5003-1

linux-image-lowlatency-hwe-16.04Ubuntu

Fixed in:4.15.0.147.143USN-5003-1

linux-image-oemUbuntu

Fixed in:4.15.0.147.143USN-5003-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1075.63USN-5003-1

linux-image-oracle-lts-18.04Ubuntu

Fixed in:4.15.0.1075.85USN-5003-1

linux-image-raspi2Ubuntu

Fixed in:4.15.0.1089.86USN-5003-1

linux-image-snapdragonUbuntu

Fixed in:4.15.0.1106.109USN-5003-1

linux-image-virtualUbuntu

Fixed in:4.15.0.147.134USN-5003-1

linux-image-virtual-hwe-16.04Ubuntu

Fixed in:4.15.0.147.143USN-5003-1

linux-oracleUbuntu

Fixed in:4.15.0-1075.83~16.04.1USN-5003-1

Fixed in:4.15.0-1075.83USN-5003-1

linux-raspi2Ubuntu

Fixed in:4.15.0-1089.94USN-5003-1

linux-snapdragonUbuntu

Fixed in:4.15.0-1106.115USN-5003-1

lowlatency-4.15Ubuntu

Fixed in:4.15.0-69LSN-0079-1

lowlatency-4.4Ubuntu

Fixed in:4.4.0-168LSN-0079-1

lowlatency-5.4Ubuntu

Fixed in:5.4.0-26LSN-0079-1

oemUbuntu

Fixed in:4.15.0-1063LSN-0079-1

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 ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

Patch1

git.kernel.org

Third-Party Advisory1

ubuntu.com

Product1

cve.mitre.org

Related Vulnerabilities

Other CWE-125 (Out-of-bounds Read) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0160	High	7.5	100%	KEV	Fix
CVE-2025-5777	High	7.5	100%	KEV + Ransom	Fix
CVE-2021-4034	High	7.8	95%	KEV	Fix
CVE-2023-21769	High	7.5	92%	-	Fix
CVE-2023-49285	High	8.6	89%	-	Fix
CVE-2020-8794	Critical	9.8	89%	-	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.