CVE-2021-30481

Common vulnerabilities & exposures (CVE)

CVE database CVE database blogpost Release & EoL database

Published at: - 10-04-2021 09:15

Last modified: - 07-02-2022 08:09

Total changes: - 4

Description

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.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Low

Attack complexity

Network

Attack vector

High

Availability

High

Confidentiality

High

Integrity

Low

Privileges required

Changed

Scope

Required

User interaction

9.0

Base score

2.3

6.0

Exploitability score

Impact score

Verification logic

vendor=valvesoftware AND product=steam_client AND versionEndIncluding=2021-04-10

Reference

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

Keywords

CVE-2021-30481

Common vulnerabilities & exposures (CVE)

Description

Common Vulnerability Scoring System (CVSS)

Verification logic

Reference

NVD

CVE-2021-30481

CVE

Common vulnerabilities & exposures

CVSS

Common vulnerability scoring system

Security

Vulnerabilities

Exposures