Is CVE-2021-38160 in the CISA KEV catalog?

No. CVE-2021-38160 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38160?

CVE-2021-38160 has a CVSS v3 base score of 7.8 (HIGH).

What is the EPSS score for CVE-2021-38160?

CVE-2021-38160 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38160?

Upgrade linux on debian 11 to 5.10.46-5 or later. Fixes are available for 120 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38160

HIGH

7.8

CVSS v3

NVD

Description

In drivers/char/virtio_console.c in the Linux kernel before 5.13.4, data corruption or loss can be triggered by an untrusted device that supplies a buf->len value exceeding the buffer size. NOTE: the vendor indicates that the cited data corruption is not a vulnerability in any existing use case; the length validation was added solely for robustness in the face of anomalous host OS behavior

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

linuxDebian

Fixed in:5.10.46-5CVE-2021-38160

Fixed in:5.14.6-1CVE-2021-38160

linuxUbuntu

Fixed in:4.4.0-222.255USN-5343-1

Fixed in:4.15.0-156.163USN-5073-1

Fixed in:5.4.0-88.99USN-5091-1

linux-awsUbuntu

Fixed in:4.4.0-1102.107USN-5343-1

Fixed in:4.4.0-1138.152USN-5343-1

Fixed in:4.15.0-1111.118USN-5073-1

Fixed in:5.4.0-1057.60USN-5091-1

linux-aws-5.11Ubuntu

Fixed in:5.11.0-1019.20~20.04.1USN-5092-1

linux-aws-5.4Ubuntu

Fixed in:5.4.0-1057.60~18.04.1USN-5091-1

linux-aws-hweUbuntu

Fixed in:4.15.0-1111.118~16.04.1USN-5073-1

linux-azureUbuntu

Fixed in:4.15.0-1123.136~14.04.1USN-5073-1

Fixed in:4.15.0-1123.136~16.04.1USN-5073-1

Fixed in:5.4.0-1059.62USN-5091-1

linux-azure-4.15Ubuntu

Fixed in:4.15.0-1123.136USN-5073-1

linux-azure-5.11Ubuntu

Fixed in:5.11.0-1017.18~20.04.1USN-5092-2

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1059.62~18.04.1USN-5091-1

linux-dell300xUbuntu

Fixed in:4.15.0-1027.32USN-5073-1

linux-gcpUbuntu

Fixed in:4.15.0-1108.122~16.04.1USN-5073-2

Fixed in:5.4.0-1053.57USN-5091-1

linux-gcp-4.15Ubuntu

Fixed in:4.15.0-1108.122USN-5073-2

linux-gcp-5.4Ubuntu

Fixed in:5.4.0-1053.57~18.04.1USN-5091-1

linux-gkeUbuntu

Fixed in:5.4.0-1053.56USN-5091-1

linux-gke-5.4Ubuntu

Fixed in:5.4.0-1053.56~18.04.1USN-5091-1

linux-gkeopUbuntu

Fixed in:5.4.0-1024.25USN-5091-1

linux-gkeop-5.4Ubuntu

Fixed in:5.4.0-1024.25~18.04.1USN-5091-1

linux-hweUbuntu

Fixed in:4.15.0-156.163~16.04.1USN-5073-1

linux-hwe-5.11Ubuntu

Fixed in:5.11.0-37.41~20.04.2USN-5092-2

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-87.98~18.04.1USN-5091-1

linux-image-4.15.0-1027-dell300xUbuntu

Fixed in:4.15.0-1027.32USN-5073-1

linux-image-4.15.0-1080-oracleUbuntu

Fixed in:4.15.0-1080.88~16.04.1USN-5073-1

Fixed in:4.15.0-1080.88USN-5073-1

linux-image-4.15.0-1095-raspi2Ubuntu

Fixed in:4.15.0-1095.101USN-5073-3

linux-image-4.15.0-1099-kvmUbuntu

Fixed in:4.15.0-1099.101USN-5073-1

linux-image-4.15.0-1108-gcpUbuntu

Fixed in:4.15.0-1108.122~16.04.1USN-5073-2

Fixed in:4.15.0-1108.122USN-5073-2

linux-image-4.15.0-1111-awsUbuntu

Fixed in:4.15.0-1111.118~16.04.1USN-5073-1

Fixed in:4.15.0-1111.118USN-5073-1

linux-image-4.15.0-1112-snapdragonUbuntu

Fixed in:4.15.0-1112.121USN-5073-1

linux-image-4.15.0-1123-azureUbuntu

Fixed in:4.15.0-1123.136~14.04.1USN-5073-1

Fixed in:4.15.0-1123.136~16.04.1USN-5073-1

Fixed in:4.15.0-1123.136USN-5073-1

linux-image-4.15.0-156-genericUbuntu

Fixed in:4.15.0-156.163~16.04.1USN-5073-1

Fixed in:4.15.0-156.163USN-5073-1

linux-image-4.15.0-156-generic-lpaeUbuntu

Fixed in:4.15.0-156.163USN-5073-1

linux-image-4.15.0-156-lowlatencyUbuntu

Fixed in:4.15.0-156.163~16.04.1USN-5073-1

Fixed in:4.15.0-156.163USN-5073-1

linux-image-4.4.0-1102-awsUbuntu

Fixed in:4.4.0-1102.107USN-5343-1

linux-image-4.4.0-1103-kvmUbuntu

Fixed in:4.4.0-1103.112USN-5343-1

linux-image-4.4.0-1138-awsUbuntu

Fixed in:4.4.0-1138.152USN-5343-1

linux-image-4.4.0-222-genericUbuntu

Fixed in:4.4.0-222.255~14.04.1USN-5343-1

Fixed in:4.4.0-222.255USN-5343-1

linux-image-4.4.0-222-lowlatencyUbuntu

Fixed in:4.4.0-222.255~14.04.1USN-5343-1

Fixed in:4.4.0-222.255USN-5343-1

linux-image-5.10.0-1049-oemUbuntu

Fixed in:5.10.0-1049.51USN-5106-1

linux-image-5.11.0-1017-azureUbuntu

Fixed in:5.11.0-1017.18~20.04.1USN-5092-2

linux-image-5.11.0-1019-awsUbuntu

Fixed in:5.11.0-1019.20~20.04.1USN-5092-1

linux-image-5.11.0-1019-oracleUbuntu

Fixed in:5.11.0-1019.20~20.04.1USN-5092-2

linux-image-5.11.0-37-genericUbuntu

Fixed in:5.11.0-37.41~20.04.2USN-5092-2

linux-image-5.11.0-37-generic-64kUbuntu

Fixed in:5.11.0-37.41~20.04.2USN-5092-2

linux-image-5.11.0-37-generic-lpaeUbuntu

Fixed in:5.11.0-37.41~20.04.2USN-5092-2

linux-image-5.11.0-37-lowlatencyUbuntu

Fixed in:5.11.0-37.41~20.04.2USN-5092-2

linux-image-5.13.0-1014-oemUbuntu

Fixed in:5.13.0-1014.18USN-5096-1

linux-image-5.4.0-1024-gkeopUbuntu

Fixed in:5.4.0-1024.25~18.04.1USN-5091-1

Fixed in:5.4.0-1024.25USN-5091-1

linux-image-5.4.0-1044-raspiUbuntu

Fixed in:5.4.0-1044.48~18.04.1USN-5091-2

Fixed in:5.4.0-1044.48USN-5091-2

linux-image-5.4.0-1047-kvmUbuntu

Fixed in:5.4.0-1047.49USN-5091-1

linux-image-5.4.0-1053-gcpUbuntu

Fixed in:5.4.0-1053.57~18.04.1USN-5091-1

Fixed in:5.4.0-1053.57USN-5091-1

linux-image-5.4.0-1053-gkeUbuntu

Fixed in:5.4.0-1053.56~18.04.1USN-5091-1

Fixed in:5.4.0-1053.56USN-5091-1

linux-image-5.4.0-1055-oracleUbuntu

Fixed in:5.4.0-1055.59~18.04.1USN-5091-1

Fixed in:5.4.0-1055.59USN-5091-1

linux-image-5.4.0-1057-awsUbuntu

Fixed in:5.4.0-1057.60~18.04.1USN-5091-1

Fixed in:5.4.0-1057.60USN-5091-1

linux-image-5.4.0-1059-azureUbuntu

Fixed in:5.4.0-1059.62~18.04.1USN-5091-1

Fixed in:5.4.0-1059.62USN-5091-1

linux-image-5.4.0-87-genericUbuntu

Fixed in:5.4.0-87.98~18.04.1USN-5091-1

linux-image-5.4.0-87-generic-lpaeUbuntu

Fixed in:5.4.0-87.98~18.04.1USN-5091-1

linux-image-5.4.0-87-lowlatencyUbuntu

Fixed in:5.4.0-87.98~18.04.1USN-5091-1

linux-image-5.4.0-88-genericUbuntu

Fixed in:5.4.0-88.99USN-5091-1

linux-image-5.4.0-88-generic-lpaeUbuntu

Fixed in:5.4.0-88.99USN-5091-1

linux-image-5.4.0-88-lowlatencyUbuntu

Fixed in:5.4.0-88.99USN-5091-1

linux-image-awsUbuntu

Fixed in:4.4.0.1102.100USN-5343-1

Fixed in:4.4.0.1138.143USN-5343-1

Fixed in:5.4.0.1057.40USN-5091-1

Fixed in:5.11.0.1019.20~20.04.18USN-5092-1

linux-image-aws-hweUbuntu

Fixed in:4.15.0.1111.102USN-5073-1

linux-image-aws-lts-18.04Ubuntu

Fixed in:4.15.0.1111.114USN-5073-1

linux-image-aws-lts-20.04Ubuntu

Fixed in:5.4.0.1057.60USN-5091-1

linux-image-azureUbuntu

Fixed in:4.15.0.1123.96USN-5073-1

Fixed in:4.15.0.1123.114USN-5073-1

Fixed in:5.4.0.1059.39USN-5091-1

linux-image-azure-edgeUbuntu

Fixed in:5.11.0.1017.18~20.04.16USN-5092-2

linux-image-azure-lts-18.04Ubuntu

Fixed in:4.15.0.1123.96USN-5073-1

linux-image-azure-lts-20.04Ubuntu

Fixed in:5.4.0.1059.57USN-5091-1

linux-image-dell300xUbuntu

Fixed in:4.15.0.1027.29USN-5073-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1108.109USN-5073-2

Fixed in:5.4.0.1053.39USN-5091-1

linux-image-gcp-lts-18.04Ubuntu

Fixed in:4.15.0.1108.127USN-5073-2

linux-image-gcp-lts-20.04Ubuntu

Fixed in:5.4.0.1053.63USN-5091-1

linux-image-genericUbuntu

Fixed in:4.4.0.222.229USN-5343-1

Fixed in:4.15.0.156.145USN-5073-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-generic-64k-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-generic-hwe-16.04Ubuntu

Fixed in:4.15.0.156.149USN-5073-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-generic-lpaeUbuntu

Fixed in:4.15.0.156.145USN-5073-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-generic-lpae-hwe-18.04Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

linux-image-generic-lpae-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-generic-lts-xenialUbuntu

Fixed in:4.4.0.222.193USN-5343-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1108.109USN-5073-2

Fixed in:5.4.0.1053.63USN-5091-1

linux-image-gke-5.4Ubuntu

Fixed in:5.4.0.1053.56~18.04.18USN-5091-1

Fixed in:5.4.0.1053.63USN-5091-1

linux-image-gkeopUbuntu

Fixed in:5.4.0.1024.27USN-5091-1

linux-image-gkeop-5.4Ubuntu

Fixed in:5.4.0.1024.25~18.04.25USN-5091-1

Fixed in:5.4.0.1024.27USN-5091-1

linux-image-kvmUbuntu

Fixed in:4.4.0.1103.101USN-5343-1

Fixed in:4.15.0.1099.95USN-5073-1

Fixed in:5.4.0.1047.46USN-5091-1

linux-image-lowlatencyUbuntu

Fixed in:4.4.0.222.229USN-5343-1

Fixed in:4.15.0.156.145USN-5073-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-lowlatency-hwe-16.04Ubuntu

Fixed in:4.15.0.156.149USN-5073-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-lowlatency-lts-xenialUbuntu

Fixed in:4.4.0.222.193USN-5343-1

linux-image-oemUbuntu

Fixed in:4.15.0.156.149USN-5073-1

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-oem-20.04Ubuntu

Fixed in:5.10.0.1049.51USN-5106-1

linux-image-oem-20.04bUbuntu

Fixed in:5.10.0.1049.51USN-5106-1

linux-image-oem-20.04cUbuntu

Fixed in:5.13.0.1014.18USN-5096-1

linux-image-oem-osp1Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1080.68USN-5073-1

Fixed in:5.4.0.1055.59~18.04.35USN-5091-1

Fixed in:5.11.0.1019.20~20.04.12USN-5092-2

linux-image-oracle-lts-18.04Ubuntu

Fixed in:4.15.0.1080.90USN-5073-1

linux-image-oracle-lts-20.04Ubuntu

Fixed in:5.4.0.1055.55USN-5091-1

linux-image-raspiUbuntu

Fixed in:5.4.0.1044.79USN-5091-2

linux-image-raspi-hwe-18.04Ubuntu

Fixed in:5.4.0.1044.47USN-5091-2

linux-image-raspi2Ubuntu

Fixed in:4.15.0.1095.93USN-5073-3

Fixed in:5.4.0.1044.79USN-5091-2

linux-image-snapdragonUbuntu

Fixed in:4.15.0.1112.115USN-5073-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

linux-image-virtualUbuntu

Fixed in:4.4.0.222.229USN-5343-1

Fixed in:4.15.0.156.145USN-5073-1

Fixed in:5.4.0.88.92USN-5091-1

linux-image-virtual-hwe-16.04Ubuntu

Fixed in:4.15.0.156.149USN-5073-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.4.0.87.98~18.04.78USN-5091-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-virtual-lts-xenialUbuntu

Fixed in:4.4.0.222.193USN-5343-1

linux-kvmUbuntu

Fixed in:4.4.0-1103.112USN-5343-1

Fixed in:4.15.0-1099.101USN-5073-1

Fixed in:5.4.0-1047.49USN-5091-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-222.255~14.04.1USN-5343-1

linux-oem-5.10Ubuntu

Fixed in:5.10.0-1049.51USN-5106-1

linux-oem-5.13Ubuntu

Fixed in:5.13.0-1014.18USN-5096-1

linux-oracleUbuntu

Fixed in:4.15.0-1080.88~16.04.1USN-5073-1

Fixed in:4.15.0-1080.88USN-5073-1

Fixed in:5.4.0-1055.59USN-5091-1

linux-oracle-5.11Ubuntu

Fixed in:5.11.0-1019.20~20.04.1USN-5092-2

linux-oracle-5.4Ubuntu

Fixed in:5.4.0-1055.59~18.04.1USN-5091-1

linux-raspiUbuntu

Fixed in:5.4.0-1044.48USN-5091-2

linux-raspi-5.4Ubuntu

Fixed in:5.4.0-1044.48~18.04.1USN-5091-2

linux-raspi2Ubuntu

Fixed in:4.15.0-1095.101USN-5073-3

linux-snapdragonUbuntu

Fixed in:4.15.0-1112.121USN-5073-1

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

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Patch1

github.com

Vendor Advisory1

cdn.kernel.org

Third-Party Advisory5

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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 2025-05-05.