Off-by-one in UltraVNC - CVE-2019-8272
Published: November 26, 2019 / Updated: November 27, 2019
Vulnerability identifier: #VU22992
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2019-8272
CWE-ID: CWE-193
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: ultravnc.sourceforge.net
Affected software:
UltraVNC
UltraVNC
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to an off-by-one error in VNC server code. A remote attacker can trigger an off-by-one error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
How to mitigate CVE-2019-8272
Install updates from vendor's website.