by Kastro
Paper/Archive/CVE-2023-20520

CVE-2023-20520

AMD 1st Gen AMD EPYC™ — Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overr…

EPSS 0.8%CVSS 9.8
critical.is priorityof 100
41
CVSS 9.8 (NVD, ADP agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 56.2.562 × 2011.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution.

Affected

ProductAffectedFixed inSource
1st Gen AMD EPYC™various –CNA
2nd Gen AMD EPYC™various –CNA
3rd Gen AMD EPYC™various –CNA

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

advisoryamd.com/en/corporate/product-security/bulletin/AMD-SB-3001