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CVE-2021-20317

Status Candidate

Overview

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

Related Files

Red Hat Security Advisory 2021-4914-06
Posted Dec 3, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4914-06 - OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains the following OpenShift Virtualization 4.8.3 images: RHEL-8-CNV-4.8.

tags | advisory
systems | linux, redhat
advisories | CVE-2018-20673, CVE-2019-13750, CVE-2019-13751, CVE-2019-17594, CVE-2019-17595, CVE-2019-18218, CVE-2019-19603, CVE-2019-20838, CVE-2019-5827, CVE-2020-12762, CVE-2020-13435, CVE-2020-14155, CVE-2020-16135, CVE-2020-24370, CVE-2020-25648, CVE-2020-36385, CVE-2021-0512, CVE-2021-20231, CVE-2021-20232, CVE-2021-20266, CVE-2021-20317, CVE-2021-22876, CVE-2021-22898, CVE-2021-22925, CVE-2021-22946, CVE-2021-22947
MD5 | ab5763d36db663e227088fd6ae26497f
Red Hat Security Advisory 2021-4875-04
Posted Dec 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4875-04 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-36385, CVE-2021-20317
MD5 | 9ed039333ab5407c451da8ca1300823e
Red Hat Security Advisory 2021-4871-05
Posted Dec 1, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4871-05 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a use-after-free vulnerability.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2020-36385, CVE-2021-20317
MD5 | 147335cf34038760a268fc3519fd9681
Red Hat Security Advisory 2021-4646-01
Posted Nov 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4646-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-20317, CVE-2021-43267
MD5 | 80b067611093e90a297bf9cf71eafdf9
Red Hat Security Advisory 2021-4647-01
Posted Nov 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4647-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-20317, CVE-2021-43267
MD5 | 7270ecee6727ad21dba82cae99882afc
Red Hat Security Advisory 2021-4650-01
Posted Nov 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4650-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-20317, CVE-2021-28950, CVE-2021-43267
MD5 | fee387a7b52341b0df7b9ce131cf15b6
Red Hat Security Advisory 2021-4648-01
Posted Nov 15, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-4648-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2021-20317, CVE-2021-28950, CVE-2021-43267
MD5 | c9b93c24cdb3eb7b7d84480ed5913626
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