Buffer overflow in Easy Chat Server - CVE-2019-20502

 

Buffer overflow in Easy Chat Server - CVE-2019-20502

Published: March 5, 2020 / Updated: August 8, 2020


Vulnerability identifier: #VU34803
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-20502
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: EFS Software Inc.
Affected software:
Easy Chat Server

Detailed vulnerability description

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

An issue was discovered in EFS Easy Chat Server 3.1. There is a buffer overflow via a long body2.ghp message parameter.


How to mitigate CVE-2019-20502

Install update from vendor's website.

Sources