CVE-2021-3543

2021-06-0100:00:00

ubuntu.com

6.7 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu21.04noarchlinux< 5.11.0-22.23UNKNOWN
ubuntu20.04noarchlinux-aws< 5.4.0-1064.67UNKNOWN
ubuntu21.04noarchlinux-aws< 5.11.0-1011.11UNKNOWN
ubuntu18.04noarchlinux-aws-5.4< 5.4.0-1064.67~18.04.1UNKNOWN
ubuntu21.04noarchlinux-azure< 5.11.0-1009.9UNKNOWN
ubuntu22.04noarchlinux-azure-fde< anyUNKNOWN
ubuntu21.04noarchlinux-gcp< 5.11.0-1011.12UNKNOWN
ubuntu22.04noarchlinux-gkeop< anyUNKNOWN
ubuntu20.04noarchlinux-gkeop-5.15< anyUNKNOWN
ubuntu21.04noarchlinux-kvm< 5.11.0-1009.9UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	21.04	noarch	linux	< 5.11.0-22.23	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< 5.4.0-1064.67	UNKNOWN
ubuntu	21.04	noarch	linux-aws	< 5.11.0-1011.11	UNKNOWN
ubuntu	18.04	noarch	linux-aws-5.4	< 5.4.0-1064.67~18.04.1	UNKNOWN
ubuntu	21.04	noarch	linux-azure	< 5.11.0-1009.9	UNKNOWN
ubuntu	22.04	noarch	linux-azure-fde	< any	UNKNOWN
ubuntu	21.04	noarch	linux-gcp	< 5.11.0-1011.12	UNKNOWN
ubuntu	22.04	noarch	linux-gkeop	< any	UNKNOWN
ubuntu	20.04	noarch	linux-gkeop-5.15	< any	UNKNOWN
ubuntu	21.04	noarch	linux-kvm	< 5.11.0-1009.9	UNKNOWN