Executive Summary

Informations
Name CVE-2021-26311 First vendor Publication 2021-05-13
Vendor Cve Last vendor Modification 2021-05-25

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.2
Base Score 7.2 Environmental Score 7.2
impact SubScore 5.9 Temporal Score 7.2
Exploitabality Sub Score 1.2
 
Attack Vector Network Attack Complexity Low
Privileges Required High User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:S/C:C/I:C/A:C)
Cvss Base Score 9 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

In the AMD SEV/SEV-ES feature, memory can be rearranged in the guest address space that is not detected by the attestation mechanism which could be used by a malicious hypervisor to potentially lead to arbitrary code execution within the guest VM if a malicious administrator has access to compromise the server hypervisor.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26311

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-77 Improper Sanitization of Special Elements used in a Command ('Command Injection')

CPE : Common Platform Enumeration

TypeDescriptionCount
Hardware 1
Hardware 1
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Sources (Detail)

Source Url
MISC https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1004

Alert History

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0
1
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Date Informations
2021-05-25 21:23:16
  • Multiple Updates
2021-05-18 05:22:49
  • Multiple Updates
2021-05-13 17:22:46
  • First insertion