Is CVE-2021-38201 in the CISA KEV catalog?

No. CVE-2021-38201 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-38201?

CVE-2021-38201 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-38201?

CVE-2021-38201 has an EPSS score of 3.36% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-38201?

Upgrade linux-aws-5.11 on ubuntu 20.04 to 5.11.0-1019.20~20.04.1 or later. Fixes are available for 22 affected products.

CVE & CISA-KEV Catalog

CVE-2021-38201

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

net/sunrpc/xdr.c in the Linux kernel before 5.13.4 allows remote attackers to cause a denial of service (xdr_set_page_base slab-out-of-bounds access) by performing many NFS 4.2 READ_PLUS operations.

CWE-119Buffer Overflow

How to fix

Remediation Available

linux-aws-5.11Ubuntu

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

linux-azure-5.11Ubuntu

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

linux-hwe-5.11Ubuntu

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

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-awsUbuntu

Fixed in:5.11.0.1019.20~20.04.18USN-5092-1

linux-image-azure-edgeUbuntu

Fixed in:5.11.0.1017.18~20.04.16USN-5092-2

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

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

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

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-image-oem-20.04cUbuntu

Fixed in:5.13.0.1014.18USN-5096-1

linux-image-oracleUbuntu

Fixed in:5.11.0.1019.20~20.04.12USN-5092-2

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.11.0.37.41~20.04.16USN-5092-2

linux-oem-5.13Ubuntu

Fixed in:5.13.0-1014.18USN-5096-1

linux-oracle-5.11Ubuntu

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

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 VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.36%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch2

Third-Party Advisory1

security.netapp.com

Related Vulnerabilities

Other CWE-119 (Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-4966	Critical	9.4	100%	KEV + Ransom	Fix
CVE-2017-11882	High	7.8	100%	KEV + Ransom	-
CVE-2020-0796	Critical	10.0	100%	KEV + Ransom	-
CVE-2008-4250	Critical	9.8	99%	KEV	-
CVE-2017-15944	Critical	9.8	98%	KEV	Fix
CVE-2015-0014	High	10.0	97%	-	-

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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.