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PRIOn knowledge basePRION:CVE-2021-21572

HistoryJun 24, 2021 - 5:15 p.m.

Buffer overflow

2021-06-2417:15:00

PRIOn knowledge base

www.prio-n.com

7.5 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

High

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.4%

JSON

Dell BIOSConnect feature contains a buffer overflow vulnerability. An authenticated malicious admin user with local access to the system may potentially exploit this vulnerability to run arbitrary code and bypass UEFI restrictions.

CPENameOperatorVersion
alienware_m15_r6_firmwarelt1.3.3
chengming_3990_firmwarelt1.4.1
chengming_3991_firmwarelt1.4.1
g15_5510_firmwarelt1.4.0
g15_5511_firmwarelt1.3.3
g3_3500_firmwarele1.9.0
g5_5500_firmwarelt1.9.0
g7_7500_firmwarelt1.9.0
g7_7700_firmwarelt1.9.0
inspiron_14_5418_firmwareeq< 2.1.0-a6

Name	Operator	Version
alienware_m15_r6_firmware	lt	1.3.3
chengming_3990_firmware	lt	1.4.1
chengming_3991_firmware	lt	1.4.1
g15_5510_firmware	lt	1.4.0
g15_5511_firmware	lt	1.3.3
g3_3500_firmware	le	1.9.0
g5_5500_firmware	lt	1.9.0
g7_7500_firmware	lt	1.9.0
g7_7700_firmware	lt	1.9.0
inspiron_14_5418_firmware	eq	< 2.1.0-a6

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References

www.dell.com/support/kbdoc/en-us/000188682

7.5 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.7 High

AI Score

Confidence

High

6.9 Medium

CVSS2

Access Vector

LOCAL

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.4%

JSON

Related for PRION:CVE-2021-21572