CVE-2021-26347 : Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader

Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.

Published 2022-05-11 17:15:08

Updated 2023-01-11 08:15:11

Source Advanced Micro Devices Inc.

View at NVD, CVE.org

Vulnerability category: OverflowDenial of service

Products affected by CVE-2021-26347

AMD » Epyc 7f72 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7f72 » Version: N/A
AMD » Epyc 7f52 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7f52 » Version: N/A
AMD » Epyc 7f32 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7f32 » Version: N/A
AMD » Epyc 7h12 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7h12 » Version: N/A
AMD » Epyc 7742 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7742 » Version: N/A
AMD » Epyc 7702 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7702 » Version: N/A
AMD » Epyc 7702p Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7702p » Version: N/A
AMD » Epyc 7662 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7662 » Version: N/A
AMD » Epyc 7642 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7642 » Version: N/A
AMD » Epyc 7552 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7552 » Version: N/A
AMD » Epyc 7542 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7542 » Version: N/A
AMD » Epyc 7532 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7532 » Version: N/A
AMD » Epyc 7502 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7502 » Version: N/A
AMD » Epyc 7502p Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7502p » Version: N/A
AMD » Epyc 7452 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7452 » Version: N/A
AMD » Epyc 7402 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7402 » Version: N/A
AMD » Epyc 7402p Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7402p » Version: N/A
AMD » Epyc 7352 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7352 » Version: N/A
AMD » Epyc 7302 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7302 » Version: N/A
AMD » Epyc 7302p Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7302p » Version: N/A
AMD » Epyc 7282 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7282 » Version: N/A
AMD » Epyc 7272 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7272 » Version: N/A
AMD » Epyc 7262 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7262 » Version: N/A
AMD » Epyc 7252 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7252 » Version: N/A
AMD » Epyc 7232p Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7232p » Version: N/A
AMD » Epyc 7763 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7763 » Version: N/A
AMD » Epyc 7713p Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7713p » Version: N/A
AMD » Epyc 7713 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7713 » Version: N/A
AMD » Epyc 7663 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7663 » Version: N/A
AMD » Epyc 7643 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7643 » Version: N/A
AMD » Epyc 75f3 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 75f3 » Version: N/A
AMD » Epyc 7543p Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7543p » Version: N/A
AMD » Epyc 7543 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7543 » Version: N/A
AMD » Epyc 7513 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7513 » Version: N/A
AMD » Epyc 7453 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7453 » Version: N/A
AMD » Epyc 74f3 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 74f3 » Version: N/A
AMD » Epyc 7443p Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7443p » Version: N/A
AMD » Epyc 7443 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7443 » Version: N/A
AMD » Epyc 7413 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7413 » Version: N/A
AMD » Epyc 73f3 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 73f3 » Version: N/A
AMD » Epyc 7343 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7343 » Version: N/A
AMD » Epyc 7313p Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7313p » Version: N/A
AMD » Epyc 7313 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7313 » Version: N/A
AMD » Epyc 72f3 Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 72f3 » Version: N/A
AMD » Epyc 7002 Firmware
Versions before (<) romepi-sp3_1.0.0.d
cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7002 » Version: N/A
AMD » Epyc 7773x Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7773x » Version: N/A
AMD » Epyc 7473x Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7473x » Version: N/A
AMD » Epyc 7573x Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7573x » Version: N/A
AMD » Epyc 7373x Firmware
Versions before (<) milanpi-sp3_1.0.0.7
cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
Matching versions
When used together with: AMD » Epyc 7373x » Version: N/A

Exploit prediction scoring system (EPSS) score for CVE-2021-26347

EPSS FAQ

0.03%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 4 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-26347

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.7	MEDIUM	AV:L/AC:M/Au:N/C:N/I:N/A:C	3.4	6.9	NIST
Access Vector: Local Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Complete
4.7	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H	1.0	3.6	NIST
Attack Vector: Local Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2021-26347

CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-26347

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1031

Access Denied

CVEs referencing this url

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Vulnerability Details : CVE-2021-26347

Products affected by CVE-2021-26347

Exploit prediction scoring system (EPSS) score for CVE-2021-26347

CVSS scores for CVE-2021-26347

CWE ids for CVE-2021-26347

References for CVE-2021-26347