Buffer overflow in Amd 2nd Gen Epyc™ Processors
CVE-2021-26354
Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be initialized to zero, potentially leading to a loss of integrity.
Vulnerability class: Buffer Overflow
EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Amd 2nd Gen Epyc™ Processors — versions various
- Amd 2nd Gen Ryzen™ Threadripper™ Processors “Colfax” — versions various
- Amd 3rd Gen Epyc™ Processors — versions various
- Amd 3rd Gen Ryzen™ Threadripper™ Processors “Castle Peak” Hedt — versions various
- Amd Amd_3015ce
- Amd Amd_3015ce_firmware
- Amd Amd_3015e
- Amd Amd_3015e_firmware
- Amd Ryzen™ 5000 Series Desktop Processors “Vermeer” Am4 — versions various
- Amd Athlon™ 3000 Series Mobile Processors With Radeon™ Graphics “Dali”/”dali” Ulp — versions various
Weakness classification (CWE)
References
- psirt@amd.com (vendor-advisory, Vendor Advisory)
- psirt@amd.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26354?
- CVE-2021-26354 is a medium-severity vulnerability in Amd 2nd Gen Epyc™ Processors, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 5.5/10. Published 2023-05-09.
- How severe is CVE-2021-26354?
- Medium severity. CVSS v3 base score is 5.5 out of 10.