Is CVE-2022-3977 in the CISA KEV catalog?

No. CVE-2022-3977 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-3977?

CVE-2022-3977 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2022-3977?

CVE-2022-3977 has an EPSS score of 0.25% (16th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-3977?

Upgrade linux on debian 12 to 6.0.2-1 or later. Fixes are available for 44 affected products.

CVE & CISA-KEV Catalog

CVE-2022-3977

HIGH

7.8

CVSS v3

NVD

Description

A use-after-free flaw was found in the Linux kernel MCTP (Management Component Transport Protocol) functionality. This issue occurs when a user simultaneously calls DROPTAG ioctl and socket close happens, which could allow a local user to crash the system or potentially escalate their privileges on the system.

CWE-416Use After Free

How to fix

Remediation Available

linuxDebian

Fixed in:6.0.2-1CVE-2022-3977

linuxUbuntu

Fixed in:5.19.0-28.29USN-5793-1

linux-awsUbuntu

Fixed in:5.19.0-1016.17USN-5793-1

linux-azureUbuntu

Fixed in:5.19.0-1016.17USN-5793-2

linux-gcpUbuntu

Fixed in:5.19.0-1014.15USN-5793-3

linux-ibmUbuntu

Fixed in:5.19.0-1014.15USN-5793-4

linux-image-5.19.0-1011-raspiUbuntu

Fixed in:5.19.0-1011.18USN-5793-1

linux-image-5.19.0-1011-raspi-nolpaeUbuntu

Fixed in:5.19.0-1011.18USN-5793-1

linux-image-5.19.0-1014-gcpUbuntu

Fixed in:5.19.0-1014.15USN-5793-3

linux-image-5.19.0-1014-ibmUbuntu

Fixed in:5.19.0-1014.15USN-5793-4

linux-image-5.19.0-1014-lowlatencyUbuntu

Fixed in:5.19.0-1014.15USN-5793-1

linux-image-5.19.0-1014-lowlatency-64kUbuntu

Fixed in:5.19.0-1014.15USN-5793-1

linux-image-5.19.0-1014-oracleUbuntu

Fixed in:5.19.0-1014.16USN-5793-3

linux-image-5.19.0-1015-kvmUbuntu

Fixed in:5.19.0-1015.16USN-5793-1

linux-image-5.19.0-1016-awsUbuntu

Fixed in:5.19.0-1016.17USN-5793-1

linux-image-5.19.0-1016-azureUbuntu

Fixed in:5.19.0-1016.17USN-5793-2

linux-image-5.19.0-28-genericUbuntu

Fixed in:5.19.0-28.29USN-5793-1

linux-image-5.19.0-28-generic-64kUbuntu

Fixed in:5.19.0-28.29USN-5793-1

linux-image-5.19.0-28-generic-lpaeUbuntu

Fixed in:5.19.0-28.29USN-5793-1

linux-image-awsUbuntu

Fixed in:5.19.0.1016.13USN-5793-1

linux-image-azureUbuntu

Fixed in:5.19.0.1016.12USN-5793-2

linux-image-gcpUbuntu

Fixed in:5.19.0.1014.11USN-5793-3

linux-image-genericUbuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-generic-64kUbuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-generic-64k-hwe-22.04Ubuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-generic-hwe-22.04Ubuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-generic-lpaeUbuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-generic-lpae-hwe-22.04Ubuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-ibmUbuntu

Fixed in:5.19.0.1014.11USN-5793-4

linux-image-kvmUbuntu

Fixed in:5.19.0.1015.12USN-5793-1

linux-image-lowlatencyUbuntu

Fixed in:5.19.0.1014.11USN-5793-1

linux-image-lowlatency-64kUbuntu

Fixed in:5.19.0.1014.11USN-5793-1

linux-image-lowlatency-64k-hwe-22.04Ubuntu

Fixed in:5.19.0.1014.11USN-5793-1

linux-image-lowlatency-hwe-22.04Ubuntu

Fixed in:5.19.0.1014.11USN-5793-1

linux-image-oem-22.04Ubuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-oracleUbuntu

Fixed in:5.19.0.1014.11USN-5793-3

linux-image-raspiUbuntu

Fixed in:5.19.0.1011.10USN-5793-1

linux-image-raspi-nolpaeUbuntu

Fixed in:5.19.0.1011.10USN-5793-1

linux-image-virtualUbuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-image-virtual-hwe-22.04Ubuntu

Fixed in:5.19.0.28.25USN-5793-1

linux-kvmUbuntu

Fixed in:5.19.0-1015.16USN-5793-1

linux-lowlatencyUbuntu

Fixed in:5.19.0-1014.15USN-5793-1

linux-oracleUbuntu

Fixed in:5.19.0-1014.16USN-5793-3

linux-raspiUbuntu

Fixed in:5.19.0-1011.18USN-5793-1

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

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.25%probability of exploitation in 30 days

16thpercentile

Low risk: more likely to be exploited than 16% of all known CVEs.

References

Patch1

git.kernel.org

Third-Party Advisory1

security.netapp.com

Related Vulnerabilities

Other CWE-416 (Use After Free) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-0708	Critical	9.8	100%	KEV + Ransom	-
CVE-2021-31166	Critical	9.8	100%	KEV	Fix
CVE-2015-5119	Critical	9.8	99%	KEV	-
CVE-2010-3962	High	8.1	97%	KEV	-
CVE-2015-0313	Critical	9.8	96%	KEV	Fix
CVE-2017-9798	High	7.5	95%	-	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 2025-04-08.