CVE-2021-20317

MediumCVSS 4.4/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 4.4/10CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-665

Affected software

No affected versions have been published.

Timeline

Published: Sep 27, 2021
Last modified: Jun 17, 2026
NVD status: Modified

Related CVEs from 2021

CVE-2021-203187.2The HornetQ component of Artemis in EAP 7 was not updated with the fix for CVE-2016-4978. A remote attacker could use this flaw to execute a CVE-2021-203197.8An improper signature verification vulnerability was found in coreos-installer. A specially crafted gzip installation image can bypass the i CVE-2021-20324.3Vulnerability in the MySQL Server product of Oracle MySQL (component: Information Schema). Supported versions that are affected are 5.7.32 a CVE-2021-203205.5A flaw was found in s390 eBPF JIT in bpf_jit_insn in arch/s390/net/bpf_jit_comp.c in the Linux kernel. In this flaw, a local attacker with s CVE-2021-203214.7A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with Ove CVE-2021-203227.4A flaw in the processing of received ICMP errors (ICMP fragment needed and ICMP redirect) in the Linux kernel functionality was found to all CVE-2021-203236.1A POST based reflected Cross Site Scripting vulnerability on has been identified in Keycloak.CVE-2021-203259.8Missing fixes for CVE-2021-40438 and CVE-2021-26691 in the versions of httpd, as shipped in Red Hat Enterprise Linux 8.5.0, causes a securit CVE-2021-203266.5A user authorized to performing a specific type of find query may trigger a denial of service. This issue affects MongoDB Server v4.4 versio CVE-2021-203276.8A specific version of the Node.js mongodb-client-encryption module does not perform correct validation of the KMS server’s certificate. This CVE-2021-203286.8Specific versions of the Java driver that support client-side field level encryption (CSFLE) fail to perform correct host name verification CVE-2021-203296.5Specific cstrings input may not be properly validated in the MongoDB Go Driver when marshalling Go objects into BSON. A malicious user could