VULNERABILITY INTELLIGENCE

CVE-2021-3564

CVSS score5.5 MEDIUM
EPSS probability0.48%
CISA KEVNot currently listed
Published2021-06-08
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Description

A flaw double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system. This flaw affects all the Linux kernel versions starting from 3.13.

Weakness classification

  • secalert@redhat.com: CWE-415
  • nvd@nist.gov: CWE-415

Primary references