Executive Summary

Informations
Name CVE-2021-46778 First vendor Publication 2022-08-10
Vendor Cve Last vendor Modification 2022-08-19

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Overall CVSS Score 5.6
Base Score 5.6 Environmental Score 5.6
impact SubScore 4 Temporal Score 5.6
Exploitabality Sub Score 1.1
 
Attack Vector Local Attack Complexity High
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1†, “Zen 2†and “Zen 3†that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46778

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-203 Information Exposure Through Discrepancy

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
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Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1
Os 1

Sources (Detail)

Source Url
MISC https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1039

Alert History

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Date Informations
2022-08-19 17:27:18
  • Multiple Updates
2022-08-13 00:27:11
  • Multiple Updates
2022-08-11 05:27:14
  • Multiple Updates
2022-08-11 00:42:46
  • First insertion