CVE & CISA-KEV Catalog

CVE-2021-38207

HIGHEPSS 87th pctl
7.5
CVSS v3
NVD

Description

drivers/net/ethernet/xilinx/ll_temac_main.c in the Linux kernel before 5.12.13 allows remote attackers to cause a denial of service (buffer overflow and lockup) by sending heavy network traffic for about ten minutes.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available
linuxDebian
Fixed in:5.10.46-1CVE-2021-38207
Fixed in:5.10.46-1CVE-2021-38207
Fixed in:5.10.46-1CVE-2021-38207
Fixed in:5.10.46-1CVE-2021-38207
linux-aws-5.11Ubuntu
Fixed in:5.11.0-1017.18~20.04.1USN-5070-1
linux-azure-5.11Ubuntu
Fixed in:5.11.0-1015.16~20.04.1USN-5070-1
linux-azure-5.8Ubuntu
Fixed in:5.8.0-1043.46~20.04.1USN-5120-1
linux-hwe-5.11Ubuntu
Fixed in:5.11.0-34.36~20.04.1USN-5070-1
linux-image-5.11.0-1015-azureUbuntu
Fixed in:5.11.0-1015.16~20.04.1USN-5070-1
linux-image-5.11.0-1017-awsUbuntu
Fixed in:5.11.0-1017.18~20.04.1USN-5070-1
linux-image-5.11.0-1017-oracleUbuntu
Fixed in:5.11.0-1017.18~20.04.1USN-5070-1
linux-image-5.11.0-34-genericUbuntu
Fixed in:5.11.0-34.36~20.04.1USN-5070-1
linux-image-5.11.0-34-generic-64kUbuntu
Fixed in:5.11.0-34.36~20.04.1USN-5070-1
linux-image-5.11.0-34-generic-lpaeUbuntu
Fixed in:5.11.0-34.36~20.04.1USN-5070-1
linux-image-5.11.0-34-lowlatencyUbuntu
Fixed in:5.11.0-34.36~20.04.1USN-5070-1
linux-image-5.8.0-1043-azureUbuntu
Fixed in:5.8.0-1043.46~20.04.1USN-5120-1
linux-image-awsUbuntu
Fixed in:5.11.0.1017.18~20.04.16USN-5070-1
linux-image-azureUbuntu
Fixed in:5.8.0.1043.46~20.04.15USN-5120-1
linux-image-generic-64k-hwe-20.04Ubuntu
Fixed in:5.11.0.34.36~20.04.13USN-5070-1
linux-image-generic-hwe-20.04Ubuntu
Fixed in:5.11.0.34.36~20.04.13USN-5070-1
linux-image-generic-lpae-hwe-20.04Ubuntu
Fixed in:5.11.0.34.36~20.04.13USN-5070-1
linux-image-lowlatency-hwe-20.04Ubuntu
Fixed in:5.11.0.34.36~20.04.13USN-5070-1
linux-image-oracleUbuntu
Fixed in:5.11.0.1017.18~20.04.10USN-5070-1
linux-image-virtual-hwe-20.04Ubuntu
Fixed in:5.11.0.34.36~20.04.13USN-5070-1
linux-oracle-5.11Ubuntu
Fixed in:5.11.0-1017.18~20.04.1USN-5070-1

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 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

3.35%probability of exploitation in 30 days
87thpercentile

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

References

Third-Party Advisory1

Related Vulnerabilities

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

CVESeverityCVSSEPSSExploitedFix
CVE-2014-0195Medium6.8100%-Fix
CVE-2017-7269Critical9.8100%KEV-
CVE-2019-11043High8.799%KEV + RansomFix
CVE-2011-4862High10.095%-Fix
CVE-2007-5659High7.894%KEVFix
CVE-2022-3786High7.591%-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.