VULNERABILITY INTELLIGENCE

CVE-2021-3543

CVSS score6.7 MEDIUM
EPSS probability0.30%
CISA KEVNot currently listed
Published2021-06-01
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Description

A flaw null pointer dereference in the Nitro Enclaves kernel driver was found in the way that Enclaves VMs forces closures on the enclave file descriptor. A local user of a host machine could use this flaw to crash the system or escalate their privileges on the system.

Weakness classification

  • secalert@redhat.com: CWE-416
  • nvd@nist.gov: CWE-416

Primary references