CVE-2018-20784

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Summary

CVECVE-2018-20784
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2019-02-22 15:29:00 UTC
Updated2021-06-02 15:28:00 UTC
DescriptionIn the Linux kernel before 4.20.2, kernel/sched/fair.c mishandles leaf cfs_rq's, which allows attackers to cause a denial of service (infinite loop in update_blocked_averages) or possibly have unspecified other impact by inducing a high load.

Risk And Classification

Problem Types: CWE-835

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Canonical Ubuntu Linux 14.04 All All All
Operating System Canonical Ubuntu Linux 16.04 All All All
Operating System Canonical Ubuntu Linux 18.04 All All All
Operating System Linux Linux Kernel All All All All
Operating System Linux Linux Kernel 5.0 rc1 All All
Operating System Linux Linux Kernel All All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux For Real Time 8 All All All

References

ReferenceSourceLinkTags
Red Hat Customer Portal REDHAT access.redhat.com
sched/fair: Fix infinite loop in update_blocked_averages() by reverti… · torvalds/linux@c40f7d7 · GitHub MISC github.com Patch, Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.2 MISC cdn.kernel.org Release Notes, Vendor Advisory
USN-4118-1: Linux kernel (AWS) vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
USN-4211-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
Red Hat Customer Portal REDHAT access.redhat.com
USN-4115-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
USN-4211-1: Linux kernel vulnerabilities | Ubuntu security notices | Ubuntu UBUNTU usn.ubuntu.com
kernel/git/torvalds/linux.git - Linux kernel source tree MISC git.kernel.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 752231 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2022:2082-1)
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