Vulnerability CVE-2021-26347


Published: 2022-05-11

Description:
TOCTOU (time-of-check to time-of-use) issue in the System Management Unit (SMU) may result in a DMA (Direct Memory Access) to invalid DRAM address that could result in denial of service.

Type:

CWE-367

(Time-of-check Time-of-use (TOCTOU) Race Condition)

CVSS2 => (AV:L/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete

 References:
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028

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