Buffer Overflow Vulnerability in UltraVNC Client Code by UltraVNC
CVE-2019-8269

7.5HIGH

Key Information:

Vendor

Kaspersky
Status
Ultravnc
Vendor
CVE Published:
8 March 2019

What is CVE-2019-8269?

UltraVNC revision 1206 contains a stack-based buffer overflow vulnerability in the VNC client code, specifically within the FileTransfer module. This flaw can potentially lead to a denial of service (DoS) condition, making it exploitable through network connectivity. Users of this version are strongly advised to update to revision 1207, which addresses this issue. Ensuring your software is updated is critical in maintaining system security and preventing exploit attempts.

Affected Version(s)

UltraVNC 1.2.2.3

References

https://ics-cert.kaspersky.com/advisories/klcert-advisori...
x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/ssa-92709...
x_refsource_CONFIRM
https://www.us-cert.gov/ics/advisories/icsa-20-161-06
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2019-8269 : Buffer Overflow Vulnerability in UltraVNC Client Code by UltraVNC