Is CVE-2020-10781 in the CISA KEV catalog?

No. CVE-2020-10781 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-10781?

CVE-2020-10781 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-10781?

CVE-2020-10781 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-10781?

Upgrade linux on debian 11 to 5.7.10-1 or later. Fixes are available for 73 affected products.

CVE & CISA-KEV Catalog

CVE-2020-10781

MEDIUM

5.5

CVSS v3

NVD

Description

A flaw was found in the Linux Kernel before 5.8-rc6 in the ZRAM kernel module, where a user with a local account and the ability to read the /sys/class/zram-control/hot_add file can create ZRAM device nodes in the /dev/ directory. This read allocates kernel memory and is not accounted for a user that triggers the creation of that ZRAM device. With this vulnerability, continually reading the device may consume a large amount of system memory and cause the Out-of-Memory (OOM) killer to activate and terminate random userspace processes, possibly making the system inoperable.

CWE-732Incorrect Permission Assignment for Critical Resource

How to fix

Remediation Available

linuxDebian

Fixed in:5.7.10-1CVE-2020-10781

linuxUbuntu

Fixed in:4.15.0-115.116USN-4485-1

Fixed in:5.4.0-45.49USN-4483-1

linux-awsUbuntu

Fixed in:4.15.0-1080.84USN-4485-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-aws-5.4Ubuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

linux-aws-hweUbuntu

Fixed in:4.15.0-1080.84~16.04.1USN-4485-1

linux-azureUbuntu

Fixed in:4.15.0-1093.103~14.04.1USN-4485-1

Fixed in:4.15.0-1093.103~16.04.1USN-4485-1

Fixed in:5.4.0-1023.23USN-4483-1

linux-azure-4.15Ubuntu

Fixed in:4.15.0-1093.103USN-4485-1

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1023.23~18.04.1USN-4483-1

linux-gcpUbuntu

Fixed in:4.15.0-1081.92~16.04.1USN-4485-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-gcp-4.15Ubuntu

Fixed in:4.15.0-1081.92USN-4485-1

linux-gcp-5.4Ubuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

linux-gke-4.15Ubuntu

Fixed in:4.15.0-1067.70USN-4485-1

linux-hweUbuntu

Fixed in:4.15.0-115.116~16.04.1USN-4485-1

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-45.49~18.04.2USN-4483-1

linux-image-4.15.0-1051-oracleUbuntu

Fixed in:4.15.0-1051.55~16.04.1USN-4485-1

Fixed in:4.15.0-1051.55USN-4485-1

linux-image-4.15.0-1067-gkeUbuntu

Fixed in:4.15.0-1067.70USN-4485-1

linux-image-4.15.0-1068-raspi2Ubuntu

Fixed in:4.15.0-1068.72USN-4485-1

linux-image-4.15.0-1072-kvmUbuntu

Fixed in:4.15.0-1072.73USN-4485-1

linux-image-4.15.0-1080-awsUbuntu

Fixed in:4.15.0-1080.84~16.04.1USN-4485-1

Fixed in:4.15.0-1080.84USN-4485-1

linux-image-4.15.0-1081-gcpUbuntu

Fixed in:4.15.0-1081.92~16.04.1USN-4485-1

Fixed in:4.15.0-1081.92USN-4485-1

linux-image-4.15.0-1084-snapdragonUbuntu

Fixed in:4.15.0-1084.92USN-4485-1

linux-image-4.15.0-1093-azureUbuntu

Fixed in:4.15.0-1093.103~14.04.1USN-4485-1

Fixed in:4.15.0-1093.103~16.04.1USN-4485-1

Fixed in:4.15.0-1093.103USN-4485-1

linux-image-4.15.0-1094-oemUbuntu

Fixed in:4.15.0-1094.104USN-4485-1

linux-image-4.15.0-115-genericUbuntu

Fixed in:4.15.0-115.116USN-4485-1

linux-image-4.15.0-115-generic-lpaeUbuntu

Fixed in:4.15.0-115.116USN-4485-1

linux-image-4.15.0-115-lowlatencyUbuntu

Fixed in:4.15.0-115.116USN-4485-1

linux-image-5.4.0-1016-raspiUbuntu

Fixed in:5.4.0-1016.17~18.04.1USN-4483-1

Fixed in:5.4.0-1016.17USN-4483-1

linux-image-5.4.0-1022-awsUbuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-image-5.4.0-1022-gcpUbuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-image-5.4.0-1022-oracleUbuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-image-5.4.0-1023-azureUbuntu

Fixed in:5.4.0-1023.23~18.04.1USN-4483-1

Fixed in:5.4.0-1023.23USN-4483-1

linux-image-5.4.0-45-genericUbuntu

Fixed in:5.4.0-45.49~18.04.2USN-4483-1

Fixed in:5.4.0-45.49USN-4483-1

linux-image-5.4.0-45-generic-lpaeUbuntu

Fixed in:5.4.0-45.49~18.04.2USN-4483-1

Fixed in:5.4.0-45.49USN-4483-1

linux-image-5.4.0-45-lowlatencyUbuntu

Fixed in:5.4.0-45.49~18.04.2USN-4483-1

Fixed in:5.4.0-45.49USN-4483-1

linux-image-awsUbuntu

Fixed in:5.4.0.1022.23USN-4483-1

linux-image-aws-edgeUbuntu

Fixed in:5.4.0.1022.8USN-4483-1

linux-image-aws-hweUbuntu

Fixed in:4.15.0.1080.77USN-4485-1

linux-image-aws-lts-18.04Ubuntu

Fixed in:4.15.0.1080.82USN-4485-1

linux-image-azureUbuntu

Fixed in:4.15.0.1093.70USN-4485-1

Fixed in:4.15.0.1093.88USN-4485-1

Fixed in:5.4.0.1023.7USN-4483-1

Fixed in:5.4.0.1023.22USN-4483-1

linux-image-azure-edgeUbuntu

Fixed in:4.15.0.1093.88USN-4485-1

linux-image-azure-lts-18.04Ubuntu

Fixed in:4.15.0.1093.67USN-4485-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1081.83USN-4485-1

Fixed in:5.4.0.1022.9USN-4483-1

Fixed in:5.4.0.1022.20USN-4483-1

linux-image-gcp-lts-18.04Ubuntu

Fixed in:4.15.0.1081.99USN-4485-1

linux-image-genericUbuntu

Fixed in:4.15.0.115.103USN-4485-1

Fixed in:5.4.0.45.49USN-4483-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-image-generic-lpaeUbuntu

Fixed in:4.15.0.115.103USN-4485-1

Fixed in:5.4.0.45.49USN-4483-1

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

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1081.83USN-4485-1

Fixed in:4.15.0.1067.71USN-4485-1

Fixed in:5.4.0.1022.20USN-4483-1

linux-image-gke-4.15Ubuntu

Fixed in:4.15.0.1067.71USN-4485-1

linux-image-gke-5.4Ubuntu

Fixed in:5.4.0.1022.9USN-4483-1

linux-image-gkeop-5.4Ubuntu

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-image-kvmUbuntu

Fixed in:4.15.0.1072.68USN-4485-1

Fixed in:5.4.0.1021.20USN-4483-1

linux-image-lowlatencyUbuntu

Fixed in:4.15.0.115.103USN-4485-1

Fixed in:5.4.0.45.49USN-4483-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-image-oemUbuntu

Fixed in:4.15.0.1094.98USN-4485-1

Fixed in:5.4.0.45.49USN-4483-1

linux-image-oem-osp1Ubuntu

Fixed in:5.4.0.45.49USN-4483-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1051.42USN-4485-1

Fixed in:5.4.0.1022.7USN-4483-1

Fixed in:5.4.0.1022.20USN-4483-1

linux-image-oracle-lts-18.04Ubuntu

Fixed in:4.15.0.1051.62USN-4485-1

linux-image-raspiUbuntu

Fixed in:5.4.0.1016.51USN-4483-1

linux-image-raspi-hwe-18.04Ubuntu

Fixed in:5.4.0.1016.20USN-4483-1

linux-image-raspi2Ubuntu

Fixed in:4.15.0.1068.66USN-4485-1

Fixed in:5.4.0.1016.51USN-4483-1

linux-image-snapdragonUbuntu

Fixed in:4.15.0.1084.87USN-4485-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-image-virtualUbuntu

Fixed in:4.15.0.115.103USN-4485-1

Fixed in:5.4.0.45.49USN-4483-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.4.0.45.49~18.04.38USN-4483-1

linux-kvmUbuntu

Fixed in:4.15.0-1072.73USN-4485-1

Fixed in:5.4.0-1021.21USN-4483-1

linux-oemUbuntu

Fixed in:4.15.0-1094.104USN-4485-1

linux-oracleUbuntu

Fixed in:4.15.0-1051.55~16.04.1USN-4485-1

Fixed in:4.15.0-1051.55USN-4485-1

Fixed in:5.4.0-1022.22USN-4483-1

linux-oracle-5.4Ubuntu

Fixed in:5.4.0-1022.22~18.04.1USN-4483-1

linux-raspiUbuntu

Fixed in:5.4.0-1016.17USN-4483-1

linux-raspi-5.4Ubuntu

Fixed in:5.4.0-1016.17~18.04.1USN-4483-1

linux-raspi2Ubuntu

Fixed in:4.15.0-1068.72USN-4485-1

linux-snapdragonUbuntu

Fixed in:4.15.0-1084.92USN-4485-1

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Patch2

Third-Party Advisory2

Related Vulnerabilities

Other CWE-732 (Incorrect Permission Assignment for Critical Resource) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2011-3923	Critical	9.8	89%	-	Fix
CVE-2018-15379	Critical	9.8	86%	-	-
CVE-2018-1000207	High	7.2	64%	-	-
CVE-2023-32986	High	8.8	63%	-	-
CVE-2021-44521	Critical	9.1	55%	-	Fix
CVE-2018-13374	Medium	4.3	38%	KEV + Ransom	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.