CVE-2018-20784
- Source
- https://cve.org/CVERecord?id=CVE-2018-20784
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20784.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2018-20784
- Downstream
- Related
- Withdrawn
- 2026-01-27T04:16:13.451650Z
- Published
- 2019-02-22T15:29:00Z
- Modified
- 2026-01-27T04:16:13.451650Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfsrq's, which allows attackers to cause a denial of service (infinite loop in updateblocked_averages) or possibly have unspecified other impact by inducing a high load.
- References
-
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c40f7d74c741a907cfaeb73a7697081881c497d0
- 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
- https://github.com/torvalds/linux/commit/c40f7d74c741a907cfaeb73a7697081881c497d0
- https://usn.ubuntu.com/4115-1/
- https://usn.ubuntu.com/4118-1/
- https://usn.ubuntu.com/4211-1/
- https://usn.ubuntu.com/4211-2/