National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-20784 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 9.8 CRITICAL
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0 Patch Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:1959
https://access.redhat.com/errata/RHSA-2019:1971
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2 Release Notes Vendor Advisory
https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0 Patch Third Party Advisory
https://usn.ubuntu.com/4115-1/
https://usn.ubuntu.com/4118-1/
https://usn.ubuntu.com/4211-1/
https://usn.ubuntu.com/4211-2/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-400 Uncontrolled Resource Consumption NIST  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (excluding)
4.20.2


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-20784
NVD Published Date:
02/22/2019
NVD Last Modified:
07/30/2019