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DellCVE-2020-5388

HistoryNov 10, 2020 - 3:15 p.m.

CVE-2020-5388

2020-11-1015:15:12

CWE-119

dell

web.nvd.nist.gov

cve-2020-5388

dell

inspiron

bios

vulnerability

smm

smram

code execution

security

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.9

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

Percentile

5.1%

JSON

Dell Inspiron 15 7579 2-in-1 BIOS versions prior to 1.31.0 contain an Improper SMM communication buffer verification vulnerability. A local authenticated malicious user may potentially exploit this vulnerability by using an SMI to gain arbitrary code execution in SMRAM.

Affected configurations

Nvd

Vulners

Node

dellinspiron_15_7579_firmwareRange<1.31.0

AND

dellinspiron_15_7579Match-

VendorProductVersionCPE
dellinspiron_15_7579_firmware*cpe:2.3:o:dell:inspiron_15_7579_firmware:*:*:*:*:*:*:*:*
dellinspiron_15_7579-cpe:2.3:h:dell:inspiron_15_7579:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
dell	inspiron_15_7579_firmware	*	cpe:2.3:o:dell:inspiron_15_7579_firmware::::::::
dell	inspiron_15_7579	-	cpe:2.3:h:dell:inspiron_15_7579:-:::::::*

CNA Affected

[
  {
    "product": "CPG BIOS",
    "vendor": "Dell",
    "versions": [
      {
        "lessThan": "1.31.0",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.dell.com/support/article/en-us/sln322869/dsa-2020-215-dell-inspiron-15-7579-2-in-1-improper-smm-communication-buffer-boundary-verification-vulnerability

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

6.9

Attack Vector

PHYSICAL

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

Confidence

High

EPSS

Percentile

5.1%

JSON

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