#VU60162 Heap-based buffer overflow in TightVNC - CVE-2022-23967
Published: January 28, 2022 / Updated: January 30, 2022
Vulnerability identifier: #VU60162
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2022-23967
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
TightVNC
TightVNC
Software vendor:
GlavSoft LLC
GlavSoft LLC
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the InitialiseRFBConnection function in rfbproto.c. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.