CVE-2019-19922

Severity CVSS v4.0:

Pending analysis

Type:

CWE-400 Uncontrolled Resource Consumption ('Resource Exhaustion')

Publication date:

22/12/2019

Last modified:

14/12/2022

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.)

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

5.50

Severity 3.x

MEDIUM

Vector 2.0

AV:L/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 2.10 LOW
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

2.10

Severity 2.0

LOW

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.3.9 (excluding)
cpe:2.3:a:oracle:sd-wan_edge:8.2:::::::*
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:data_availability_services:-:::::::*
cpe:2.3:a:netapp:e-series_santricity_os_controller::::::::	11.0 (including)	11.70.2 (including)
cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:::::::*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:::::::*
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:::::::*
cpe:2.3:h:netapp:aff_baseboard_management_controller:a700:::::::*
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		5.3.9 (excluding)
cpe:2.3:a:oracle:sd-wan_edge:8.2:::::::*
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:a:netapp:active_iq_unified_manager:-:::::vmware_vsphere::
cpe:2.3:a:netapp:cloud_backup:-:::::::*
cpe:2.3:a:netapp:data_availability_services:-:::::::*
cpe:2.3:a:netapp:e-series_santricity_os_controller::::::::	11.0 (including)	11.70.2 (including)
cpe:2.3:a:netapp:fas\/aff_baseboard_management_controller:-:::::::*
cpe:2.3:a:netapp:hci_baseboard_management_controller:h610s:::::::*
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:::::::*
cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:::::::*
cpe:2.3:h:netapp:aff_baseboard_management_controller:a700:::::::*
cpe:2.3:h:netapp:solidfire_baseboard_management_controller:-:::::::*

CVE-2019-19922

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools