Executive Summary

Informations
Name CVE-2021-26340 First vendor Publication 2021-12-10
Vendor Cve Last vendor Modification 2021-12-15

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
Overall CVSS Score 8.4
Base Score 8.4 Environmental Score 8.4
impact SubScore 5.8 Temporal Score 8.4
Exploitabality Sub Score 2
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 3.6 Attack Range Local
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26340

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

Sources (Detail)

Source Url
MISC https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1023

Alert History

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0
1
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Date Informations
2021-12-16 00:22:55
  • Multiple Updates
2021-12-13 17:22:56
  • Multiple Updates
2021-12-11 00:22:54
  • First insertion