Is CVE-2020-25641 in the CISA KEV catalog?

No. CVE-2020-25641 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-25641?

CVE-2020-25641 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2020-25641?

CVE-2020-25641 has an EPSS score of 0.39% (31th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-25641?

Upgrade linux on debian 11 to 5.8.10-1 or later. Fixes are available for 82 affected products.

CVE & CISA-KEV Catalog

CVE-2020-25641

MEDIUM

5.5

CVSS v3

NVD

Description

A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.

CWE-835

How to fix

Remediation Available

linuxDebian

Fixed in:5.8.10-1CVE-2020-25641

linuxUbuntu

Fixed in:4.15.0-126.129USN-4660-1

Fixed in:5.4.0-51.56USN-4576-1

linux-awsUbuntu

Fixed in:4.15.0-1088.93USN-4660-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-aws-5.4Ubuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

linux-aws-hweUbuntu

Fixed in:4.15.0-1088.93~16.04.1USN-4660-1

linux-azureUbuntu

Fixed in:4.15.0-1100.111~14.04.1USN-4660-1

Fixed in:4.15.0-1100.111~16.04.1USN-4660-1

Fixed in:5.4.0-1031.32USN-4576-1

linux-azure-4.15Ubuntu

Fixed in:4.15.0-1100.111USN-4660-1

linux-azure-5.4Ubuntu

Fixed in:5.4.0-1031.32~18.04.1USN-4576-1

linux-gcpUbuntu

Fixed in:4.15.0-1088.101~16.04.1USN-4660-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-gcp-4.15Ubuntu

Fixed in:4.15.0-1088.101USN-4660-1

linux-gcp-5.4Ubuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

linux-gke-4.15Ubuntu

Fixed in:4.15.0-1074.79USN-4660-1

linux-hweUbuntu

Fixed in:4.15.0-126.129~16.04.1USN-4660-1

linux-hwe-5.4Ubuntu

Fixed in:5.4.0-51.56~18.04.1USN-4576-1

linux-image-4.15.0-1059-oracleUbuntu

Fixed in:4.15.0-1059.65~16.04.1USN-4660-1

Fixed in:4.15.0-1059.65USN-4660-1

linux-image-4.15.0-1074-gkeUbuntu

Fixed in:4.15.0-1074.79USN-4660-1

linux-image-4.15.0-1074-raspi2Ubuntu

Fixed in:4.15.0-1074.79USN-4660-1

linux-image-4.15.0-1079-kvmUbuntu

Fixed in:4.15.0-1079.81USN-4660-1

linux-image-4.15.0-1088-awsUbuntu

Fixed in:4.15.0-1088.93~16.04.1USN-4660-1

Fixed in:4.15.0-1088.93USN-4660-1

linux-image-4.15.0-1088-gcpUbuntu

Fixed in:4.15.0-1088.101~16.04.1USN-4660-1

Fixed in:4.15.0-1088.101USN-4660-1

linux-image-4.15.0-1091-snapdragonUbuntu

Fixed in:4.15.0-1091.100USN-4660-1

linux-image-4.15.0-1100-azureUbuntu

Fixed in:4.15.0-1100.111~14.04.1USN-4660-1

Fixed in:4.15.0-1100.111~16.04.1USN-4660-1

Fixed in:4.15.0-1100.111USN-4660-1

linux-image-4.15.0-1103-oemUbuntu

Fixed in:4.15.0-1103.114USN-4660-1

linux-image-4.15.0-126-genericUbuntu

Fixed in:4.15.0-126.129~16.04.1USN-4660-1

Fixed in:4.15.0-126.129USN-4660-1

linux-image-4.15.0-126-generic-lpaeUbuntu

Fixed in:4.15.0-126.129~16.04.1USN-4660-1

Fixed in:4.15.0-126.129USN-4660-1

linux-image-4.15.0-126-lowlatencyUbuntu

Fixed in:4.15.0-126.129~16.04.1USN-4660-1

Fixed in:4.15.0-126.129USN-4660-1

linux-image-5.4.0-1021-raspiUbuntu

Fixed in:5.4.0-1021.24~18.04.1USN-4576-1

Fixed in:5.4.0-1021.24USN-4576-1

linux-image-5.4.0-1026-kvmUbuntu

Fixed in:5.4.0-1026.27USN-4576-1

linux-image-5.4.0-1028-awsUbuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-image-5.4.0-1028-gcpUbuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-image-5.4.0-1028-oracleUbuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-image-5.4.0-1031-azureUbuntu

Fixed in:5.4.0-1031.32~18.04.1USN-4576-1

Fixed in:5.4.0-1031.32USN-4576-1

linux-image-5.4.0-51-genericUbuntu

Fixed in:5.4.0-51.56~18.04.1USN-4576-1

Fixed in:5.4.0-51.56USN-4576-1

linux-image-5.4.0-51-generic-lpaeUbuntu

Fixed in:5.4.0-51.56~18.04.1USN-4576-1

Fixed in:5.4.0-51.56USN-4576-1

linux-image-5.4.0-51-lowlatencyUbuntu

Fixed in:5.4.0-51.56~18.04.1USN-4576-1

Fixed in:5.4.0-51.56USN-4576-1

linux-image-5.6.0-1048-oemUbuntu

Fixed in:5.6.0-1048.52USN-4752-1

linux-image-awsUbuntu

Fixed in:5.4.0.1028.13USN-4576-1

Fixed in:5.4.0.1028.29USN-4576-1

linux-image-aws-hweUbuntu

Fixed in:4.15.0.1088.82USN-4660-1

linux-image-aws-lts-18.04Ubuntu

Fixed in:4.15.0.1088.90USN-4660-1

linux-image-azureUbuntu

Fixed in:4.15.0.1100.75USN-4660-1

Fixed in:4.15.0.1100.93USN-4660-1

Fixed in:5.4.0.1031.13USN-4576-1

Fixed in:5.4.0.1031.29USN-4576-1

linux-image-azure-edgeUbuntu

Fixed in:4.15.0.1100.93USN-4660-1

linux-image-azure-lts-18.04Ubuntu

Fixed in:4.15.0.1100.73USN-4660-1

linux-image-gcpUbuntu

Fixed in:4.15.0.1088.89USN-4660-1

Fixed in:5.4.0.1028.16USN-4576-1

Fixed in:5.4.0.1028.36USN-4576-1

linux-image-gcp-lts-18.04Ubuntu

Fixed in:4.15.0.1088.106USN-4660-1

linux-image-genericUbuntu

Fixed in:4.15.0.126.113USN-4660-1

Fixed in:5.4.0.51.54USN-4576-1

linux-image-generic-hwe-16.04Ubuntu

Fixed in:4.15.0.126.125USN-4660-1

linux-image-generic-hwe-18.04Ubuntu

Fixed in:5.4.0.51.56~18.04.45USN-4576-1

linux-image-generic-hwe-20.04Ubuntu

Fixed in:5.4.0.51.54USN-4576-1

linux-image-generic-lpaeUbuntu

Fixed in:4.15.0.126.113USN-4660-1

Fixed in:5.4.0.51.54USN-4576-1

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

Fixed in:4.15.0.126.125USN-4660-1

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

Fixed in:5.4.0.51.56~18.04.45USN-4576-1

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

Fixed in:5.4.0.51.54USN-4576-1

linux-image-gkeUbuntu

Fixed in:4.15.0.1088.89USN-4660-1

Fixed in:4.15.0.1074.78USN-4660-1

Fixed in:5.4.0.1028.36USN-4576-1

linux-image-gke-4.15Ubuntu

Fixed in:4.15.0.1074.78USN-4660-1

linux-image-kvmUbuntu

Fixed in:4.15.0.1079.75USN-4660-1

Fixed in:5.4.0.1026.24USN-4576-1

linux-image-lowlatencyUbuntu

Fixed in:4.15.0.126.113USN-4660-1

Fixed in:5.4.0.51.54USN-4576-1

linux-image-lowlatency-hwe-16.04Ubuntu

Fixed in:4.15.0.126.125USN-4660-1

linux-image-lowlatency-hwe-18.04Ubuntu

Fixed in:5.4.0.51.56~18.04.45USN-4576-1

linux-image-lowlatency-hwe-20.04Ubuntu

Fixed in:5.4.0.51.54USN-4576-1

linux-image-oemUbuntu

Fixed in:4.15.0.126.125USN-4660-1

Fixed in:4.15.0.1103.107USN-4660-1

Fixed in:5.4.0.51.54USN-4576-1

linux-image-oem-20.04Ubuntu

Fixed in:5.6.0.1048.44USN-4752-1

linux-image-oem-osp1Ubuntu

Fixed in:5.4.0.51.54USN-4576-1

linux-image-oracleUbuntu

Fixed in:4.15.0.1059.48USN-4660-1

Fixed in:5.4.0.1028.12USN-4576-1

Fixed in:5.4.0.1028.25USN-4576-1

linux-image-oracle-lts-18.04Ubuntu

Fixed in:4.15.0.1059.69USN-4660-1

linux-image-raspiUbuntu

Fixed in:5.4.0.1021.56USN-4576-1

linux-image-raspi-hwe-18.04Ubuntu

Fixed in:5.4.0.1021.25USN-4576-1

linux-image-raspi2Ubuntu

Fixed in:4.15.0.1074.71USN-4660-1

Fixed in:5.4.0.1021.56USN-4576-1

linux-image-snapdragonUbuntu

Fixed in:4.15.0.1091.94USN-4660-1

linux-image-snapdragon-hwe-18.04Ubuntu

Fixed in:5.4.0.51.56~18.04.45USN-4576-1

linux-image-virtualUbuntu

Fixed in:4.15.0.126.113USN-4660-1

Fixed in:5.4.0.51.54USN-4576-1

linux-image-virtual-hwe-16.04Ubuntu

Fixed in:4.15.0.126.125USN-4660-1

linux-image-virtual-hwe-18.04Ubuntu

Fixed in:5.4.0.51.56~18.04.45USN-4576-1

linux-image-virtual-hwe-20.04Ubuntu

Fixed in:5.4.0.51.54USN-4576-1

linux-kvmUbuntu

Fixed in:4.15.0-1079.81USN-4660-1

Fixed in:5.4.0-1026.27USN-4576-1

linux-oemUbuntu

Fixed in:4.15.0-1103.114USN-4660-1

linux-oem-5.6Ubuntu

Fixed in:5.6.0-1048.52USN-4752-1

linux-oracleUbuntu

Fixed in:4.15.0-1059.65~16.04.1USN-4660-1

Fixed in:4.15.0-1059.65USN-4660-1

Fixed in:5.4.0-1028.29USN-4576-1

linux-oracle-5.4Ubuntu

Fixed in:5.4.0-1028.29~18.04.1USN-4576-1

linux-raspiUbuntu

Fixed in:5.4.0-1021.24USN-4576-1

linux-raspi-5.4Ubuntu

Fixed in:5.4.0-1021.24~18.04.1USN-4576-1

linux-raspi2Ubuntu

Fixed in:4.15.0-1074.79USN-4660-1

linux-snapdragonUbuntu

Fixed in:4.15.0-1091.100USN-4660-1

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

0.39%probability of exploitation in 30 days

31stpercentile

Low risk: more likely to be exploited than 31% of all known CVEs.

References

Patch2

Vendor Advisory1

kernel.org

Third-Party Advisory6

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix
CVE-2024-20353	High	8.6	63%	KEV	-

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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.