Advisories

UltraVNC Launcher 1.2.2.4 Denial of Service Buffer Overflow

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severity
medium
date
Affecting
  • UltraVNC Launcher <= 1.2.2.4

CWE
  • CWE-787 Out-of-bounds Write
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Credit
Victor Mondragón
Description
UltraVNC Launcher 1.2.2.4 contains a buffer overflow vulnerability in the Path vncviewer.exe property field that allows local attackers to crash the application by supplying an excessively long string. Attackers can input a 300-byte payload of repeated characters through the Properties dialog to trigger a denial of service condition.

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