Vulnerability Monitor

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CVE-2021-3543

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.

Published

2021-06-01T14:15:10.407

Last Modified

2024-11-21T06:21:48.200

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.7 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: COMPLETE
  • Integrity Impact: COMPLETE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

10.0

Weaknesses
  • Type: Secondary
    CWE-416
  • Type: Primary
    CWE-416
    CWE-476
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application nitro_enclaves_project nitro_enclaves < 5.10.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System fedoraproject fedora 34 Yes
References