{"cve":"CVE-2019-19922","nvd":{"published":"2019-12-22T20:15:10.823","modified":"2026-06-17T02:27:27.533","status":"Modified","description":"kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfs_quota_us is used (e.g., with Kubernetes), allows attackers to cause a denial of service against non-cpu-bound applications by generating a workload that triggers unwanted slice expiration, aka CID-de53fd7aedb1. (In other words, although this slice expiration would typically be seen with benign workloads, it is possible that an attacker could calculate how many stray requests are required to force an entire Kubernetes cluster into a low-performance state caused by slice expiration, and ensure that a DDoS attack sent that number of stray requests. An attack does not affect the stability of the kernel; it only causes mismanagement of application execution.)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-400"],"references":["https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9","https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de53fd7aedb100f03e5d2231cfce0e4993282425","https://github.com/kubernetes/kubernetes/issues/67577","https://github.com/torvalds/linux/commit/de53fd7aedb100f03e5d2231cfce0e4993282425","https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","linux:linux_kernel","netapp:active_iq_unified_manager","netapp:aff_baseboard_management_controller","netapp:cloud_backup","netapp:data_availability_services","netapp:e-series_santricity_os_controller","netapp:fas\\/aff_baseboard_management_controller","netapp:hci_baseboard_management_controller","netapp:solidfire_\\&_hci_management_node","netapp:solidfire_baseboard_management_controller","netapp:steelstore_cloud_integrated_storage","oracle:sd-wan_edge"],"source":"nvd","synced_at":"2026-10-19T20:59:27.069234358+00:00"},"epss":{"cve":"CVE-2019-19922","score":0.00949,"percentile":0.61215,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}