VULNERABILITY INTELLIGENCE

CVE-2021-20317

CVSS score4.4 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2021-09-27
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • secalert@redhat.com: CWE-665
  • nvd@nist.gov: CWE-665

Primary references