CVE-2021-3543

medium

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.

References

https://lore.kernel.org/lkml/20210429165941.27020-2-andraprs%40amazon.com/

https://bugzilla.redhat.com/show_bug.cgi?id=1953022

Details

Source: Mitre, NVD

Published: 2021-06-01

Updated: 2023-11-07

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 6.7

Vector: CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: Medium