SB2020012813 - Multiple vulnerabilities in Valve Dota 2

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Main Vulnerability Database SB2020012813

SB2020012813 - Multiple vulnerabilities in Valve Dota 2

Published: January 28, 2020

Security Bulletin ID SB2020012813
CSH Severity
High
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2020-7952)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or execute arbitrary code.

The vulnerability exists due to a boundary error in "rendersystemdx9.dll". A remote attacker can create a gaming server, invite a victim to this server, because a crafted map is affected by memory corruption and execute arbitrary code or cause a denial of service condition on the target system.


2) Input validation error (CVE-ID: CVE-2020-7950)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or execute arbitrary code.

The vulnerability exists due to insufficient validation of user-supplied input in the "meshsystem.dll". A remote attacker can create a gaming server, invite a victim to this server, because a crafted map is mishandled during a vulnerable function call and execute arbitrary code or cause a denial of service condition on the target system.


3) Input validation error (CVE-ID: CVE-2020-7949)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or execute arbitrary code.

The vulnerability exists due to insufficient validation of user-supplied input in the "schemasystem.dll". A remote attacker can create a gaming server, invite a victim to this server, because a crafted map is mishandled during a GetValue call and execute arbitrary code or cause a denial of service condition on the target system.


Remediation

Install update from vendor's website.

References