Is CVE-2020-11935 in the CISA KEV catalog?

No. CVE-2020-11935 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-11935?

CVE-2020-11935 has a CVSS v3 base score of 4.4 (MEDIUM).

What is the EPSS score for CVE-2020-11935?

CVE-2020-11935 has an EPSS score of 0.20% (10th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-11935?

Upgrade aws on ubuntu 16.04 to 4.4.0-1098 or later. Fixes are available for 130 affected products.

CVE & CISA-KEV Catalog

CVE-2020-11935

MEDIUM

4.4

CVSS v3

NVD

Description

It was discovered that aufs improperly managed inode reference counts in the vfsub_dentry_open() method. A local attacker could use this vulnerability to cause a denial of service attack.

CWE-911

How to fix

Remediation Available

awsUbuntu

Fixed in:4.4.0-1098LSN-0070-1

Fixed in:4.4.0-1098LSN-0072-1

Fixed in:4.15.0-1054LSN-0072-1

Fixed in:4.15.0-1054LSN-0070-1

Fixed in:5.4.0-1009LSN-0070-1

Fixed in:5.4.0-1009LSN-0072-1

azureUbuntu

Fixed in:4.15.0-1063LSN-0070-1

Fixed in:5.4.0-1010LSN-0070-1

Fixed in:5.4.0-1010LSN-0072-1

gcpUbuntu

Fixed in:5.4.0-1009LSN-0072-1

Fixed in:5.4.0-1009LSN-0070-1

generic-4.15Ubuntu

Fixed in:4.15.0-69LSN-0072-1

Fixed in:4.15.0-69LSN-0070-1

generic-4.4Ubuntu

Fixed in:4.4.0-168LSN-0070-1

Fixed in:4.4.0-168LSN-0072-1

Fixed in:4.4.0-168LSN-0070-1

generic-5.4Ubuntu

Fixed in:5.4.0-26LSN-0072-1

Fixed in:5.4.0-26LSN-0070-1

linuxUbuntu

Fixed in:4.4.0-186.216USN-4427-1

Fixed in:4.15.0-112.113USN-4426-1

Fixed in:5.4.0-42.46USN-4425-1

linux-awsUbuntu

Fixed in:4.4.0-1075.79USN-4427-1

Fixed in:4.4.0-1111.123USN-4427-1

Fixed in:4.15.0-1079.83USN-4426-1

Fixed in:5.4.0-1020.20USN-4425-1

linux-aws-5.3Ubuntu

Fixed in:5.3.0-1032.34~18.04.2USN-4440-1

linux-aws-hweUbuntu

Fixed in:4.15.0-1079.83~16.04.1USN-4426-1

linux-azureUbuntu

Fixed in:4.15.0-1092.102~16.04.1USN-4426-1

Fixed in:5.4.0-1022.22USN-4425-1

linux-azure-4.15Ubuntu

Fixed in:4.15.0-1092.102USN-4426-1

linux-azure-5.3Ubuntu

Fixed in:5.3.0-1034.35~18.04.1USN-4440-1

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4425-1

linux-gcpUbuntu

Fixed in:4.15.0-1080.90~16.04.1USN-4426-1

Fixed in:5.4.0-1021.21USN-4425-1

linux-gcp-4.15Ubuntu

Fixed in:4.15.0-1080.90USN-4426-1

linux-gcp-5.3Ubuntu

Fixed in:5.3.0-1032.34~18.04.1USN-4440-1

linux-gke-4.15Ubuntu

Fixed in:4.15.0-1066.69USN-4426-1

linux-gke-5.0Ubuntu

Fixed in:5.0.0-1045.46USN-4439-1

linux-gke-5.3Ubuntu

Fixed in:5.3.0-1032.34~18.04.1USN-4440-1

linux-hweUbuntu

Fixed in:4.15.0-112.113~16.04.1USN-4426-1

Fixed in:5.3.0-64.58~18.04.1USN-4440-1

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-42.46~18.04.1USN-4425-1

linux-image-4.15.0-1050-oracleUbuntu

Fixed in:4.15.0-1050.54~16.04.1USN-4426-1

Fixed in:4.15.0-1050.54USN-4426-1

linux-image-4.15.0-1066-gkeUbuntu

Fixed in:4.15.0-1066.69USN-4426-1

linux-image-4.15.0-1067-raspi2Ubuntu

Fixed in:4.15.0-1067.71USN-4426-1

linux-image-4.15.0-1071-kvmUbuntu

Fixed in:4.15.0-1071.72USN-4426-1

linux-image-4.15.0-1079-awsUbuntu

Fixed in:4.15.0-1079.83~16.04.1USN-4426-1

Fixed in:4.15.0-1079.83USN-4426-1

linux-image-4.15.0-1080-gcpUbuntu

Fixed in:4.15.0-1080.90~16.04.1USN-4426-1

Fixed in:4.15.0-1080.90USN-4426-1

linux-image-4.15.0-1092-azureUbuntu

Fixed in:4.15.0-1092.102~16.04.1USN-4426-1

Fixed in:4.15.0-1092.102USN-4426-1

linux-image-4.15.0-1093-oemUbuntu

Fixed in:4.15.0-1093.103USN-4426-1

linux-image-4.15.0-112-genericUbuntu

Fixed in:4.15.0-112.113~16.04.1USN-4426-1

Fixed in:4.15.0-112.113USN-4426-1

linux-image-4.15.0-112-generic-lpaeUbuntu

Fixed in:4.15.0-112.113~16.04.1USN-4426-1

Fixed in:4.15.0-112.113USN-4426-1

linux-image-4.15.0-112-lowlatencyUbuntu

Fixed in:4.15.0-112.113~16.04.1USN-4426-1

Fixed in:4.15.0-112.113USN-4426-1

linux-image-4.4.0-1075-awsUbuntu

Fixed in:4.4.0-1075.79USN-4427-1

linux-image-4.4.0-1077-kvmUbuntu

Fixed in:4.4.0-1077.84USN-4427-1

linux-image-4.4.0-1111-awsUbuntu

Fixed in:4.4.0-1111.123USN-4427-1

linux-image-4.4.0-1136-raspi2Ubuntu

Fixed in:4.4.0-1136.145USN-4427-1

linux-image-4.4.0-1140-snapdragonUbuntu

Fixed in:4.4.0-1140.148USN-4427-1

linux-image-4.4.0-186-genericUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-generic-lpaeUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-lowlatencyUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-powerpc-e500mcUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-powerpc-smpUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-powerpc64-embUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-4.4.0-186-powerpc64-smpUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

Fixed in:4.4.0-186.216USN-4427-1

linux-image-5.0.0-1045-gkeUbuntu

Fixed in:5.0.0-1045.46USN-4439-1

linux-image-5.0.0-1065-oem-osp1Ubuntu

Fixed in:5.0.0-1065.70USN-4439-1

linux-image-5.3.0-1030-oracleUbuntu

Fixed in:5.3.0-1030.32~18.04.1USN-4440-1

linux-image-5.3.0-1030-raspi2Ubuntu

Fixed in:5.3.0-1030.32~18.04.2USN-4440-1

linux-image-5.3.0-1032-awsUbuntu

Fixed in:5.3.0-1032.34~18.04.2USN-4440-1

linux-image-5.3.0-1032-gcpUbuntu

Fixed in:5.3.0-1032.34~18.04.1USN-4440-1

linux-image-5.3.0-1032-gkeUbuntu

Fixed in:5.3.0-1032.34~18.04.1USN-4440-1

linux-image-5.3.0-1034-azureUbuntu

Fixed in:5.3.0-1034.35~18.04.1USN-4440-1

linux-image-5.3.0-64-genericUbuntu

Fixed in:5.3.0-64.58~18.04.1USN-4440-1

linux-image-5.3.0-64-generic-lpaeUbuntu

Fixed in:5.3.0-64.58~18.04.1USN-4440-1

linux-image-5.3.0-64-lowlatencyUbuntu

Fixed in:5.3.0-64.58~18.04.1USN-4440-1

linux-image-5.4.0-1015-raspiUbuntu

Fixed in:5.4.0-1015.15~18.04.1USN-4425-1

Fixed in:5.4.0-1015.15USN-4425-1

linux-image-5.4.0-1020-awsUbuntu

Fixed in:5.4.0-1020.20USN-4425-1

linux-image-5.4.0-1021-gcpUbuntu

Fixed in:5.4.0-1021.21USN-4425-1

linux-image-5.4.0-1021-oracleUbuntu

Fixed in:5.4.0-1021.21USN-4425-1

linux-image-5.4.0-1022-azureUbuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4425-1

Fixed in:5.4.0-1022.22USN-4425-1

linux-image-5.4.0-30-genericUbuntu

Fixed in:5.4.0-30.34USN-4425-1

linux-image-5.4.0-42-genericUbuntu

Fixed in:5.4.0-42.46~18.04.1USN-4425-1

Fixed in:5.4.0-42.46USN-4425-1

linux-image-5.4.0-42-generic-lpaeUbuntu

Fixed in:5.4.0-42.46~18.04.1USN-4425-1

Fixed in:5.4.0-42.46USN-4425-1

linux-image-5.4.0-42-lowlatencyUbuntu

Fixed in:5.4.0-42.46~18.04.1USN-4425-1

Fixed in:5.4.0-42.46USN-4425-1

linux-image-awsUbuntu

Fixed in:4.4.0.1075.72USN-4427-1

Fixed in:4.4.0.1111.116USN-4427-1

Fixed in:5.3.0.1032.31USN-4440-1

Fixed in:5.4.0.1020.21USN-4425-1

linux-image-aws-hweUbuntu

Fixed in:4.15.0.1079.76USN-4426-1

linux-image-aws-lts-18.04Ubuntu

Fixed in:4.15.0.1079.81USN-4426-1

linux-image-azureUbuntu

Fixed in:4.15.0.1092.87USN-4426-1

Fixed in:5.3.0.1034.30USN-4440-1

Fixed in:5.4.0.1022.21USN-4425-1

linux-image-azure-edgeUbuntu

Fixed in:5.4.0.1022.6USN-4425-1

linux-image-azure-lts-18.04Ubuntu

Fixed in:4.15.0.1092.63USN-4426-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1080.82USN-4426-1

Fixed in:5.3.0.1032.26USN-4440-1

Fixed in:5.4.0.1021.19USN-4425-1

linux-image-gcp-lts-18.04Ubuntu

Fixed in:4.15.0.1080.96USN-4426-1

linux-image-genericUbuntu

Fixed in:4.4.0.186.192USN-4427-1

Fixed in:4.15.0.112.100USN-4426-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-generic-hwe-16.04Ubuntu

Fixed in:4.15.0.112.114USN-4426-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-generic-lpaeUbuntu

Fixed in:4.4.0.186.192USN-4427-1

Fixed in:4.15.0.112.100USN-4426-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-generic-lpae-hwe-16.04Ubuntu

Fixed in:4.15.0.112.114USN-4426-1

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

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-generic-lpae-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-generic-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1080.82USN-4426-1

Fixed in:4.15.0.1066.68USN-4426-1

Fixed in:5.4.0.1021.19USN-4425-1

linux-image-gke-4.15Ubuntu

Fixed in:4.15.0.1066.68USN-4426-1

linux-image-gke-5.0Ubuntu

Fixed in:5.0.0.1045.30USN-4439-1

linux-image-gke-5.3Ubuntu

Fixed in:5.3.0.1032.17USN-4440-1

linux-image-gkeop-5.3Ubuntu

Fixed in:5.3.0.64.120USN-4440-1

linux-image-gkeop-5.4Ubuntu

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-kvmUbuntu

Fixed in:4.4.0.1077.75USN-4427-1

Fixed in:4.15.0.1071.67USN-4426-1

Fixed in:5.4.0.1020.19USN-4425-1

linux-image-lowlatencyUbuntu

Fixed in:4.4.0.186.192USN-4427-1

Fixed in:4.15.0.112.100USN-4426-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-lowlatency-hwe-16.04Ubuntu

Fixed in:4.15.0.112.114USN-4426-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-lowlatency-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-oemUbuntu

Fixed in:4.15.0.112.114USN-4426-1

Fixed in:4.15.0.1093.96USN-4426-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-oem-osp1Ubuntu

Fixed in:5.0.0.1065.63USN-4439-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1050.41USN-4426-1

Fixed in:5.3.0.1030.27USN-4440-1

Fixed in:5.4.0.1021.19USN-4425-1

linux-image-oracle-lts-18.04Ubuntu

Fixed in:4.15.0.1050.59USN-4426-1

linux-image-powerpc-e500mcUbuntu

Fixed in:4.4.0.186.192USN-4427-1

linux-image-powerpc-e500mc-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-powerpc-smpUbuntu

Fixed in:4.4.0.186.192USN-4427-1

linux-image-powerpc-smp-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-powerpc64-embUbuntu

Fixed in:4.4.0.186.192USN-4427-1

linux-image-powerpc64-emb-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-powerpc64-smpUbuntu

Fixed in:4.4.0.186.192USN-4427-1

linux-image-powerpc64-smp-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-image-raspiUbuntu

Fixed in:5.4.0.1015.50USN-4425-1

linux-image-raspi-hwe-18.04Ubuntu

Fixed in:5.4.0.1015.19USN-4425-1

linux-image-raspi2Ubuntu

Fixed in:4.4.0.1136.136USN-4427-1

Fixed in:4.15.0.1067.65USN-4426-1

Fixed in:5.4.0.1015.50USN-4425-1

linux-image-raspi2-hwe-18.04Ubuntu

Fixed in:5.3.0.1030.20USN-4440-1

linux-image-snapdragonUbuntu

Fixed in:4.4.0.1140.132USN-4427-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-virtualUbuntu

Fixed in:4.4.0.186.192USN-4427-1

Fixed in:4.15.0.112.100USN-4426-1

Fixed in:5.4.0.42.45USN-4425-1

linux-image-virtual-hwe-16.04Ubuntu

Fixed in:4.15.0.112.114USN-4426-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.4.0.42.46~18.04.35USN-4425-1

linux-image-virtual-lts-xenialUbuntu

Fixed in:4.4.0.186.163USN-4427-1

linux-kvmUbuntu

Fixed in:4.4.0-1077.84USN-4427-1

Fixed in:4.15.0-1071.72USN-4426-1

Fixed in:5.4.0-1020.20USN-4425-1

linux-lts-xenialUbuntu

Fixed in:4.4.0-186.216~14.04.1USN-4427-1

linux-oemUbuntu

Fixed in:4.15.0-1093.103USN-4426-1

linux-oem-osp1Ubuntu

Fixed in:5.0.0-1065.70USN-4439-1

linux-oracleUbuntu

Fixed in:4.15.0-1050.54~16.04.1USN-4426-1

Fixed in:4.15.0-1050.54USN-4426-1

Fixed in:5.4.0-1021.21USN-4425-1

linux-oracle-5.3Ubuntu

Fixed in:5.3.0-1030.32~18.04.1USN-4440-1

linux-raspiUbuntu

Fixed in:5.4.0-1015.15USN-4425-1

linux-raspi-5.4Ubuntu

Fixed in:5.4.0-1015.15~18.04.1USN-4425-1

linux-raspi2Ubuntu

Fixed in:4.4.0-1136.145USN-4427-1

Fixed in:4.15.0-1067.71USN-4426-1

linux-raspi2-5.3Ubuntu

Fixed in:5.3.0-1030.32~18.04.2USN-4440-1

linux-riscvUbuntu

Fixed in:5.4.0-30.34USN-4425-1

linux-snapdragonUbuntu

Fixed in:4.4.0-1140.148USN-4427-1

Fixed in:4.15.0-1083.91USN-4426-1

lowlatency-4.15Ubuntu

Fixed in:4.15.0-69LSN-0070-1

Fixed in:4.15.0-69LSN-0072-1

lowlatency-4.4Ubuntu

Fixed in:4.4.0-168LSN-0072-1

Fixed in:4.4.0-168LSN-0070-1

Fixed in:4.4.0-168LSN-0072-1

lowlatency-5.4Ubuntu

Fixed in:5.4.0-26LSN-0072-1

Fixed in:5.4.0-26LSN-0070-1

oemUbuntu

Fixed in:4.15.0-1063LSN-0070-1

Fixed in:4.15.0-1063LSN-0072-1

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 RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.20%probability of exploitation in 30 days

10thpercentile

Low risk: more likely to be exploited than 10% of all known CVEs.

References

Vendor Advisory2

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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.