CVE-2021-26402
High
Description
Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.
SeverityHigh
CVSS7.1
Exploit probability—
ProductAmd Epyc 7h12 Firmware
PublishedJan 11, 2023
First seenJan 11, 2023
Weakness typeCWE-787Out-of-bounds write
How to fix
Update
- amd epyc_7h12_firmwareromepi_1.0.0.c or later
- amd epyc_7f72_firmwareromepi_1.0.0.c or later
- amd epyc_7f52_firmwareromepi_1.0.0.c or later
- amd epyc_7f32_firmwareromepi_1.0.0.c or later
- amd epyc_7742_firmwareromepi_1.0.0.c or later
- amd epyc_7702p_firmwareromepi_1.0.0.c or later
- amd epyc_7702_firmwareromepi_1.0.0.c or later
- amd epyc_7662_firmwareromepi_1.0.0.c or later
- amd epyc_7642_firmwareromepi_1.0.0.c or later
- amd epyc_7552_firmwareromepi_1.0.0.c or later
- amd epyc_7542_firmwareromepi_1.0.0.c or later
- amd epyc_7532_firmwareromepi_1.0.0.c or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| amd epyc_7h12_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7f72_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7f52_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7f32_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7742_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7702p_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7702_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7662_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7642_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7552_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7542_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7532_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7502p_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7502_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7452_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7402_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7402p_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7352_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7302p_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7302_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7282_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7272_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7262_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7252_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7232p_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7002_firmware | v < romepi_1.0.0.c | romepi_1.0.0.c |
| amd epyc_7003_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_72f3_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7313_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7313p_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7343_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7373x_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_73f3_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7413_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7443_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7443p_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7453_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_74f3_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7513_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7543_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7543p_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7573x_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_75f3_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7643_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7663_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7713_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7713p_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7743_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7763_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
| amd epyc_7773x_firmware | v < milanpi_1.0.0.4 | milanpi_1.0.0.4 |
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