PT-2019-18958 · Ultravnc · Ultravnc

Published 2019-03-08 · Updated 2020-10-19 · CVE-2019-8269

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions UltraVNC revision 1206

Description The issue is a stack-based buffer overflow in the VNC client code within the FileTransfer module, leading to a denial of service (DoS) condition. This can be exploited via network connectivity.

Recommendations For UltraVNC revision 1206, update to revision 1207 to resolve the issue.

Fix

Stack Overflow

Memory Corruption

Weakness Enumeration

CWE-121

CWE-787

Related Identifiers

CVE-2019-8269

Affected Products

Ultravnc

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2019-8269 · Security Note
• https://osv.dev/vulnerability/CVE-2019-8269 · Vendor Advisory
• https://us-cert.gov/ics/advisories/icsa-20-161-06 · Note
• https://ics-cert.kaspersky.com/advisories/klcert-advisories/2019/03/01/klcert-19-016-ultravnc-stack-based-buffer-overflow · Note
• https://cert-portal.siemens.com/productcert/pdf/ssa-927095.pdf · Note