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.
Published: 2021-09-27
Score: 4.4 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
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Remediation

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-2843-1 linux security update
Debian DLA Debian DLA DLA-2941-1 linux-4.19 security update
Debian DSA Debian DSA DSA-5096-1 linux security update
EUVD EUVD EUVD-2021-7742 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.
Ubuntu USN Ubuntu USN USN-5209-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-5343-1 Linux kernel vulnerabilities
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Debian Debian Linux
Linux Linux Kernel
Redhat Enterprise Linux Rhel Eus
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-03T17:37:23.839Z

Reserved: 2020-12-17T00:00:00.000Z

Link: CVE-2021-20317

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-09-27T11:15:07.357

Modified: 2024-11-21T05:46:21.933

Link: CVE-2021-20317

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-09-23T16:20:00Z

Links: CVE-2021-20317 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses