CVE-2019-19922
First published: Sun Dec 22 2019(Updated: )
A flaw was found in the Linux kernel’s scheduler, where it can allow attackers to cause a denial of service against non-CPU-bound applications by generating a workload that triggers unwanted scheduling slice expiration. A local attacker who can trigger a specific workload type could abuse this technique to trigger a system to be seen as degraded, and possibly trigger workload-rebalance in systems that use the slice-expiration metric as a measure of system health.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel-alt | <0:4.14.0-115.19.1.el7a | 0:4.14.0-115.19.1.el7a |
| redhat/kernel-rt | <0:4.18.0-193.rt13.51.el8 | 0:4.18.0-193.rt13.51.el8 |
| redhat/kernel | <0:4.18.0-193.el8 | 0:4.18.0-193.el8 |
| Linux Linux kernel | <5.3.9 | |
| Oracle SD-WAN Edge | =8.2 | |
| Canonical Ubuntu Linux | =18.04 | |
| Canonical Ubuntu Linux | =19.04 | |
| Debian Debian Linux | =8.0 | |
| Netapp Active Iq Unified Manager Vmware Vsphere | ||
| Netapp Cloud Backup | ||
| Netapp Data Availability Services | ||
| NetApp E-Series SANtricity OS Controller | >=11.0<=11.70.2 | |
| Netapp Fas\/aff Baseboard Management Controller | ||
| Netapp Hci Baseboard Management Controller | =h610s | |
| Netapp Solidfire \& Hci Management Node | ||
| Netapp Steelstore Cloud Integrated Storage | ||
| Netapp Aff Baseboard Management Controller | =a700 | |
| Netapp Solidfire Baseboard Management Controller | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.5-1 6.11.7-1 |
Remedy
Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://www.cve.org/CVERecord?id=CVE-2019-19922 https://nvd.nist.gov/vuln/detail/CVE-2019-19922
- https://bugzilla.redhat.com/show_bug.cgi?id=1792512
- https://access.redhat.com/errata/RHSA-2020:1493
- https://access.redhat.com/errata/RHSA-2020:1567
- https://access.redhat.com/errata/RHSA-2020:1769
- https://access.redhat.com/security/cve/cve-2019-19922
- 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://relistan.com/the-kernel-may-be-slowing-down-your-app
- https://usn.ubuntu.com/4226-1/
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://security.netapp.com/advisory/ntap-20200204-0002/
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://launchpad.net/bugs/cve/CVE-2019-19922
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1792513
- https://git.kernel.org/linus/de53fd7aedb100f03e5d2231cfce0e4993282425
- https://security-tracker.debian.org/tracker/CVE-2019-19922
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19922
- https://nvd.nist.gov/vuln/detail/CVE-2019-19922
- https://ubuntu.com/security/CVE-2019-19922
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2019-19922
- agent/author
- agent/severity
- agent/weakness
- collector/nvd-index
- agent/software-canonical-lookup-request
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/usn-cve
- source/Ubuntu
- collector/security-tracker-debian
- source/Debian
- agent/remedy
- agent/references
- agent/softwarecombine
- agent/tags
- agent/description
- agent/event
- package-manager/redhat
- vendor/linux
- canonical/linux linux kernel
- vendor/oracle
- canonical/oracle sd-wan edge
- version/oracle sd-wan edge/8.2
- vendor/canonical
- canonical/canonical ubuntu linux
- version/canonical ubuntu linux/18.04
- version/canonical ubuntu linux/19.04
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/8.0
- vendor/netapp
- canonical/netapp active iq unified manager vmware vsphere
- canonical/netapp cloud backup
- canonical/netapp data availability services
- canonical/netapp e-series santricity os controller
- version/netapp e-series santricity os controller/11.0
- version/netapp e-series santricity os controller/11.70.2
- canonical/netapp fas\/aff baseboard management controller
- canonical/netapp hci baseboard management controller
- version/netapp hci baseboard management controller/h610s
- canonical/netapp solidfire \& hci management node
- canonical/netapp steelstore cloud integrated storage
- canonical/netapp aff baseboard management controller
- version/netapp aff baseboard management controller/a700
- canonical/netapp solidfire baseboard management controller
- package-manager/debian