PT-2023-1409 · Amd · Amd Processor Security

CVE-2021-46791 · Published 2023-01-10 · Updated 2023-08-08

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions AMD processor security software (affected versions not specified)

Description The issue is related to insufficient input validation during the parsing of the System Management Mode (SMM) binary, which may allow a maliciously crafted SMM executable binary to corrupt Dynamic Root of Trust for Measurement (DRTM) user application memory. This could result in a potential denial of service. The vulnerability is also described as a buffer overflow issue when processing a binary file, which could be exploited by a remote attacker to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-20

CWE-787

CWE-119

Related Identifiers

BDU:2023-00790

CVE-2021-46791

Affected Products

Amd Processor Security

References · 6

• https://amd.com/en/corporate/product-security/bulletin/AMD-SB-1032 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-46791 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-46791 · Security Note
• https://bdu.fstec.ru/vul/2023-00790 · Security Note
• https://vuldb.com/ru/?id.217975 · Note
• https://support.lenovo.com/us/en/product_security/LEN-87730 · Note