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MitreCVE-2021-42977

HistoryDec 07, 2021 - 8:15 p.m.

CVE-2021-42977

2021-12-0720:15:07

CWE-190

mitre

web.nvd.nist.gov

nomachine

enterprise desktop

integer overflow

cve-2021-42977

security vulnerability

nomachine enterprise desktop

ioctl handler

kernel mode

denial of service

memory corruption

os crash

nvd

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

Percentile

9.6%

JSON

NoMachine Enterprise Desktop is affected by Integer Overflow. IOCTL Handler 0x22001B in the NoMachine Enterprise Desktop above 4.0.346 and below 7.7.4 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

Affected configurations

Nvd

Node

nomachineenterprise_desktopRange4.0.346–7.7.4

VendorProductVersionCPE
nomachineenterprise_desktop*cpe:2.3:a:nomachine:enterprise_desktop:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
nomachine	enterprise_desktop	*	cpe:2.3:a:nomachine:enterprise_desktop::::::::

References

www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/

CVSS2

7.2

Attack Vector

LOCAL

Attack 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

CVSS3

8.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.8

Confidence

High

EPSS

Percentile

9.6%

JSON

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