Out-of-bounds write in AMD products - CVE-2021-46774

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Main Vulnerability Database Vulnerabilities #VU84017

Out-of-bounds write in AMD products - CVE-2021-46774

Published: December 8, 2023


Vulnerability identifier: #VU84017
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2021-46774
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: AMD
Affected software:
1st Gen AMD EPYC Processors
2nd Gen AMD EPYC Processors
3rd Gen AMD EPYC Processors
4th Gen AMD EPYC Processors

Detailed vulnerability description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing DRAM address in System Management Unit (SMU). A local user can trigger an out-of-bounds write and perform a denial of service (DoS) attack.


How to mitigate CVE-2021-46774

Install updates from vendor's website.

Sources