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ubuntucveUbuntu.comUB:CVE-2021-28216
HistoryAug 05, 2021 - 12:00 a.m.

CVE-2021-28216

2021-08-0500:00:00
ubuntu.com
ubuntu.com
27
nvram
pcdfirmwareperformancedatatables3support
bugzilla
pei
cve-2021-28216

CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

17.8%

JSON

BootPerformanceTable pointer is read from an NVRAM variable in PEI.
Recommend setting PcdFirmwarePerformanceDataTableS3Support to FALSE.

Bugs

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchedk2< anyUNKNOWN
ubuntu20.04noarchedk2< anyUNKNOWN
ubuntu16.04noarchedk2< anyUNKNOWN

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CVSS2

4.6

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

EPSS

0.001

Percentile

17.8%

JSON
Related for UB:CVE-2021-28216
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