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PRIOn knowledge basePRION:CVE-2021-46792

HistoryMay 09, 2023 - 8:15 p.m.

Design/Logic Flaw

2023-05-0920:15:00

PRIOn knowledge base

www.prio-n.com

bios2psp

race condition

asp bootloader

out-of-bounds sram reads

s3 resume event

denial of service

nvd

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

2.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0005 Low

EPSS

Percentile

14.3%

JSON

Time-of-check Time-of-use (TOCTOU) in the
BIOS2PSP command may allow an attacker with a malicious BIOS to create a race
condition causing the ASP bootloader to perform out-of-bounds SRAM reads upon
an S3 resume event potentially leading to a denial of service.

CPENameOperatorVersion
athlon_gold_3150g_firmwareeqpicassopifp51.0.0.4
athlon_gold_3150ge_firmwareeqpicassopifp51.0.0.4
athlon_silver_3050ge_firmwareeqpicassopifp51.0.0.4
ryzen_1200_\\(af\\)_firmwareeqpinnaclepiam41.0.0.7
ryzen_1200_\\(af\\)_firmwareeqravenfp5am41.0.0.9
ryzen_1600_\\(af\\)_firmwareeqpinnaclepiam41.0.0.7
ryzen_1600_\\(af\\)_firmwareeqravenfp5am41.0.0.9
ryzen_2200g_firmwareeqpinnaclepiam41.0.0.7
ryzen_2200g_firmwareeqravenfp5am41.0.0.9
ryzen_2200ge_firmwareeqpinnaclepiam41.0.0.7

Name	Operator	Version
athlon_gold_3150g_firmware	eq	picassopifp51.0.0.4
athlon_gold_3150ge_firmware	eq	picassopifp51.0.0.4
athlon_silver_3050ge_firmware	eq	picassopifp51.0.0.4
ryzen_1200_\\(af\\)_firmware	eq	pinnaclepiam41.0.0.7
ryzen_1200_\\(af\\)_firmware	eq	ravenfp5am41.0.0.9
ryzen_1600_\\(af\\)_firmware	eq	pinnaclepiam41.0.0.7
ryzen_1600_\\(af\\)_firmware	eq	ravenfp5am41.0.0.9
ryzen_2200g_firmware	eq	pinnaclepiam41.0.0.7
ryzen_2200g_firmware	eq	ravenfp5am41.0.0.9
ryzen_2200ge_firmware	eq	pinnaclepiam41.0.0.7

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References

www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001

5.9 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

6.5 Medium

AI Score

Confidence

High

2.6 Low

CVSS2

Access Vector

NETWORK

Access Complexity

HIGH

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.0005 Low

EPSS

Percentile

14.3%

JSON

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