CVEvulnerability

CVE-2021-3543

6.7 MEDIUM Published 2021-06-01 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-06-01
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.7 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
Weaknesses
CWE-416, CWE-476

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.

Affected configurations

• nitro enclaves project nitro enclaves (< 5.10.0) • redhat enterprise linux 8.0 • fedoraproject fedora 34

Related

Weakness · CWE (2)

  • CWE-416 Use After Free weakness
  • CWE-476 NULL Pointer Dereference weakness

References