CVE-2019-19922
published 2019-12-22CVE-2019-19922: 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…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.95%
57.2th percentile
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.)
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | linux | < linux 5.3.9-1 (bookworm) | linux 5.3.9-1 (bookworm) |
| linux | linux_kernel | < 5.3.9 | 5.3.9 |
| linux | linux_kernel | >= 0 < 5.3.9-1 | 5.3.9-1 |
| linux | linux_kernel | >= 0 < 5.3.9-1 | 5.3.9-1 |
| linux | linux_kernel | >= 0 < 5.3.9-1 | 5.3.9-1 |
| linux | linux_kernel | >= 0 < 5.3.9-1 | 5.3.9-1 |
| netapp | aff_baseboard_management_controller | — | — |
| netapp | e-series_santricity_os_controller | 11.0 – 11.70.2 | — |
| netapp | hci_baseboard_management_controller | — | — |
| oracle | sd-wan_edge | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.02.1LOWAV:L/AC:L/Au:N/C:N/I:N/A:P
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
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GHSA
GHSA-q3fc-6x2v-6ph8: kernel/sched/fair
ghsa_unreviewed·2022-05-24
CVE-2019-19922 [LOW] CWE-400 GHSA-q3fc-6x2v-6ph8: kernel/sched/fair
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.)
OSV
linux, linux-aws, linux-aws-5.0, linux-azure, linux-gcp, linux-gke-5.0, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities
osv·2020-01-07·CVSS 8.8
CVE-2019-10220 [HIGH] linux, linux-aws, linux-aws-5.0, linux-azure, linux-gcp, linux-gke-5.0, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities
linux, linux-aws, linux-aws-5.0, linux-azure, linux-gcp, linux-gke-5.0, linux-kvm, linux-oem-osp1, linux-oracle, linux-oracle-5.0, linux-raspi2 vulnerabilities
Michael Hanselmann discovered that the CIFS implementation in the Linux
kernel did not sanitize paths returned by an SMB server. An attacker
controlling an SMB server could use this to overwrite arbitrary files.
(CVE-2019-10220)
It was discovered that a heap-based buffer overflow existed in the Marvell
WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2019-14895, CVE-2019-14901)
It was discovered that a heap-based buffer overflow existed in the Marvell
Libertas WLAN Driver for the Linux kernel. A physically proxi
OSV
CVE-2019-19922: kernel/sched/fair
osv·2019-12-22·CVSS 5.5
CVE-2019-19922 [MEDIUM] CVE-2019-19922: kernel/sched/fair
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.)
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2020-01-07·CVSS 8.8
CVE-2019-10220 [HIGH] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Michael Hanselmann discovered that the CIFS implementation in the Linux
kernel did not sanitize paths returned by an SMB server. An attacker
controlling an SMB server could use this to overwrite arbitrary files.
(CVE-2019-10220)
It was discovered that a heap-based buffer overflow existed in the Marvell
WiFi-Ex Driver for the Linux kernel. A physically proximate attacker could
use this to cause a denial of service (system crash) or possibly execute
arbitrary code. (CVE-2019-14895, CVE-2019-14901)
It was discovered that a heap-based buffer overflow existed in the Marvell
Libertas WLAN Driver for the Linux kernel. A physically proximate attacker
could use this to cause a denial of service
Red Hat
kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
vendor_redhat·2019-12-22·CVSS 5.5
CVE-2019-19922 [MEDIUM] CWE-400 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
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 onl
Debian
CVE-2019-19922: linux - kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfs_quota_us is u...
vendor_debian·2019·CVSS 5.5
CVE-2019-19922 [MEDIUM] CVE-2019-19922: linux - kernel/sched/fair.c in the Linux kernel before 5.3.9, when cpu.cfs_quota_us is u...
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.)
Scope: local
bookworm: resolved (fixed in 5.3.9-1)
bullseye: resolved
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
bugzilla·2020-01-17·CVSS 5.5
CVE-2019-19922 [MEDIUM] CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications
A flaw was found in the Linux kernels scheduler which 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 is able to 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 slice-expiration metric as a measure of system health.
Reference:
https://github.com/kubernetes/kubernetes/issues/67577
Reference and upstream commit:
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de53fd7aedb100f03e5d2231c
Bugzilla
CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications [fedora-all]
bugzilla·2020-01-17·CVSS 5.5
CVE-2019-19922 [MEDIUM] CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications [fedora-all]
CVE-2019-19922 kernel: when cpu.cfs_quota_us is used allows attackers to cause a denial of service against non-cpu-bound applications [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de53fd7aedb100f03e5d2231cfce0e4993282425https://github.com/kubernetes/kubernetes/issues/67577https://github.com/torvalds/linux/commit/de53fd7aedb100f03e5d2231cfce0e4993282425https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlhttps://relistan.com/the-kernel-may-be-slowing-down-your-apphttps://security.netapp.com/advisory/ntap-20200204-0002/https://usn.ubuntu.com/4226-1/https://www.oracle.com/security-alerts/cpuApr2021.htmlhttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.9https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=de53fd7aedb100f03e5d2231cfce0e4993282425https://github.com/kubernetes/kubernetes/issues/67577https://github.com/torvalds/linux/commit/de53fd7aedb100f03e5d2231cfce0e4993282425https://lists.debian.org/debian-lts-announce/2020/01/msg00013.htmlhttps://relistan.com/the-kernel-may-be-slowing-down-your-apphttps://security.netapp.com/advisory/ntap-20200204-0002/https://usn.ubuntu.com/4226-1/https://www.oracle.com/security-alerts/cpuApr2021.html
2019-12-22
Published