CVE-2018-20784

Critical

In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.

Package Linux Kernel
Published 2019-02-22
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

9.8

out of 10
Critical
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-835

CVE-2018-20784 is a Infinite Loop vulnerability

What is Infinite Loop?

The product contains an iteration that does not exit even when it should. Learn more on MITRE CWE

References

9 total
Showing 5 of 9 references View all on NVD

Frequently asked questions

  • What is CVE-2018-20784?

    CVE-2018-20784 is a Critical severity Linux kernel vulnerability with a CVSS score of 9.8 out of 10 , classified as an Infinite Loop flaw (CWE-835) . CVE-2018-20784 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2018-20784?

    CVE-2018-20784 has a CVSS score of 9.8 out of 10, rated Critical severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H .

  • Is there a patch available for CVE-2018-20784?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2018-20784 patch availability.

  • Is CVE-2018-20784 actively exploited?

    No. CVE-2018-20784 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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