Out-of-bounds write in TightVNC - CVE-2019-15679
Published: October 31, 2019 / Updated: February 9, 2022
Vulnerability identifier: #VU22437
CSH Severity: High
CVSS v4.0: 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:U/U:Amber
CVE-ID: CVE-2019-15679
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: GlavSoft LLC
Affected software:
TightVNC
TightVNC
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error in "InitialiseRFBConnection" function. A remote attacker can trigger out-of-bounds write and execute arbitrary code on the target system.
How to mitigate CVE-2019-15679
Install update from vendor's website.