VULNERABILITY INTELLIGENCE

CVE-2021-3759

CVSS score5.5 MEDIUM
EPSS probability0.36%
CISA KEVNot currently listed
Published2022-08-23
Last modified2026-10-14
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.

Weakness classification

  • secalert@redhat.com: CWE-400
  • nvd@nist.gov: CWE-770

Primary references