Detections
Analytics

CVE-2018-20784

critical

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.

References

https://usn.ubuntu.com/4211-2/

https://usn.ubuntu.com/4211-1/

https://usn.ubuntu.com/4118-1/

https://usn.ubuntu.com/4115-1/

https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0

https://access.redhat.com/errata/RHSA-2019:1971

https://access.redhat.com/errata/RHSA-2019:1959

https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0

Details

Source: Mitre, NVD

Published: 2019-02-22

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.00691