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CVE-2023-20521

CVE-2023-20521

CVSS 3.3 LOWEPSS 0.3%
Vexday Risk Score
8Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 3.3EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado
Lifecycle
14 Nov 2023Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.
CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
Affected products
AMD · 1st Gen AMD EPYC™ ProcessorsAMD · 2nd Gen AMD EPYC™ ProcessorsAMD · 3rd Gen AMD EPYC™ ProcessorsAMD · AMD EPYC™ Embedded 3000AMD · AMD EPYC™ Embedded 7002AMD · AMD EPYC™ Embedded 7003AMD · AMD Ryzen™ Embedded R1000AMD · AMD Ryzen™ Embedded R2000AMD · AMD Ryzen™ Embedded V1000AMD · Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics “Picasso” AM4AMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” FP5AMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”AMD · Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics “Picasso” FP5AMD · Ryzen™ Threadripper™ 2000 Series Processors “Colfax”

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References
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001