Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2021-30481 First vendor Publication 2021-04-10
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Overall CVSS Score 9
Base Score 9 Environmental Score 9
impact SubScore 6 Temporal Score 9
Exploitabality Sub Score 2.3
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction Required
Scope Changed 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:M/Au:S/C:P/I:P/A:P)
Cvss Base Score 6 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Valve Steam through 2021-04-10, when a Source engine game is installed, allows remote authenticated users to execute arbitrary code because of a buffer overflow that occurs for a Steam invite after one click.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-30481

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 35

Sources (Detail)

https://news.ycombinator.com/item?id=26762170
https://twitter.com/floesen_/status/1337107178096881666
https://twitter.com/the_secret_club/status/1380868759129296900
https://www.youtube.com/watch?v=rNQn--9xR1Q
Source Url

Alert History

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Date Informations
2024-11-28 13:55:46
  • Multiple Updates
2022-02-08 00:23:15
  • Multiple Updates
2021-04-22 00:23:16
  • Multiple Updates
2021-04-12 17:23:00
  • Multiple Updates
2021-04-11 00:23:04
  • First insertion