CVEvulnerability

CVE-2023-20521

5.7 MEDIUM Published 2023-11-14 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-11-14
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
3.3 LOW — CVSS:3.1/AV:P/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
CVSS 3.1 ([email protected])
5.7 MEDIUM — CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:H
Weaknesses
CWE-367

Description

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.

Affected configurations

• amd epyc 7001 firmware (< naplespi 1.0.0.h) • amd epyc 7251 firmware (< naplespi 1.0.0.h) • amd epyc 7261 firmware (< naplespi 1.0.0.h) • amd epyc 7281 firmware (< naplespi 1.0.0.h) • amd epyc 7301 firmware (< naplespi 1.0.0.h) • amd epyc 7351 firmware (< naplespi 1.0.0.h) • amd epyc 7351p firmware (< naplespi 1.0.0.h) • amd epyc 7371 firmware (< naplespi 1.0.0.h) • amd epyc 7401 firmware (< naplespi 1.0.0.h) • amd epyc 7401p firmware (< naplespi 1.0.0.h) • amd epyc 7451 firmware (< naplespi 1.0.0.h) • amd epyc 7501 firmware (< naplespi 1.0.0.h) • amd epyc 7551 firmware (< naplespi 1.0.0.h) • amd epyc 7551p firmware (< naplespi 1.0.0.h) • amd epyc 7601 firmware (< naplespi 1.0.0.h) • amd epyc 7232p firmware (< romepi 1.0.0.d) • amd epyc 7252 firmware (< romepi 1.0.0.d) • amd epyc 7262 firmware (< romepi 1.0.0.d) • amd epyc 7272 firmware (< romepi 1.0.0.d) • amd epyc 7282 firmware (< romepi 1.0.0.d) • amd epyc 7302 firmware (< romepi 1.0.0.d) • amd epyc 7302p firmware (< romepi 1.0.0.d) • amd epyc 7352 firmware (< romepi 1.0.0.d) • amd epyc 7402 firmware (< romepi 1.0.0.d) • amd epyc 7402p firmware (< romepi 1.0.0.d) • amd epyc 7452 firmware (< romepi 1.0.0.d) • amd epyc 7502 firmware (< romepi 1.0.0.d) • amd epyc 7502p firmware (< romepi 1.0.0.d) • amd epyc 7532 firmware (< romepi 1.0.0.d) • amd epyc 7542 firmware (< romepi 1.0.0.d) • amd epyc 7552 firmware (< romepi 1.0.0.d) • amd epyc 7642 firmware (< romepi 1.0.0.d) • amd epyc 7662 firmware (< romepi 1.0.0.d) • amd epyc 7702 firmware (< romepi 1.0.0.d) • amd epyc 7702p firmware (< romepi 1.0.0.d) • amd epyc 7742 firmware (< romepi 1.0.0.d) • amd epyc 7f32 firmware (< romepi 1.0.0.d) • amd epyc 7f52 firmware (< romepi 1.0.0.d) • amd epyc 7f72 firmware (< romepi 1.0.0.d) • amd epyc 7h12 firmware (< romepi 1.0.0.d) • amd epyc 7763 firmware (< milanpi 1.0.0.7) • amd epyc 7713p firmware (< milanpi 1.0.0.7) • amd epyc 7713 firmware (< milanpi 1.0.0.7) • amd epyc 7663p firmware (< milanpi 1.0.0.7) • amd epyc 7663 firmware (< milanpi 1.0.0.7) • amd epyc 7643p firmware (< milanpi 1.0.0.7) • amd epyc 7773x firmware (< milanpi 1.0.0.7) • amd epyc 7643 firmware (< milanpi 1.0.0.7) • amd epyc 7573x firmware (< milanpi 1.0.0.7) • amd epyc 75f3 firmware (< milanpi 1.0.0.7) • amd epyc 7543p firmware (< milanpi 1.0.0.7) • amd epyc 7543 firmware (< milanpi 1.0.0.7) • amd epyc 7513 firmware (< milanpi 1.0.0.7) • amd epyc 7473x firmware (< milanpi 1.0.0.7) • amd epyc 7453 firmware (< milanpi 1.0.0.7) • amd epyc 74f3 firmware (< milanpi 1.0.0.7) • amd epyc 7443p firmware (< milanpi 1.0.0.7) • amd epyc 7443 firmware (< milanpi 1.0.0.7) • amd epyc 7413 firmware (< milanpi 1.0.0.7) • amd epyc 7373x firmware (< milanpi 1.0.0.7) … and 33 more

Related

Weakness · CWE (1)

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

References