Executive Summary

Informations
Name CVE-2021-3543 First vendor Publication 2021-06-01
Vendor Cve Last vendor Modification 2023-11-07

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 6.7
Base Score 6.7 Environmental Score 6.7
impact SubScore 5.9 Temporal Score 6.7
Exploitabality Sub Score 0.8
 
Attack Vector Local Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 7.2 Attack Range Local
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3543

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-476 NULL Pointer Dereference
50 % CWE-416 Use After Free

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 1

Sources (Detail)

https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs%40amazon.com/
Source Url
MISC https://bugzilla.redhat.com/show_bug.cgi?id=1953022

Alert History

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Date Informations
2023-11-07 21:34:50
  • Multiple Updates
2022-06-03 21:27:20
  • Multiple Updates
2022-04-02 05:23:21
  • Multiple Updates
2021-06-12 00:22:56
  • Multiple Updates
2021-06-08 01:40:07
  • Multiple Updates
2021-06-08 00:22:48
  • Multiple Updates
2021-06-03 01:40:14
  • Multiple Updates
2021-06-02 17:22:46
  • Multiple Updates
2021-06-01 17:22:48
  • First insertion