Out-of-Bounds Access Vulnerability in UltraVNC by UltraVNC
CVE-2019-8264

9.8CRITICAL

Key Information:

Vendor
Kaspersky
Status
Ultravnc
Vendor
CVE Published:
8 March 2019

Summary

UltraVNC versions prior to revision 1204 are susceptible to an out-of-bounds access vulnerability in the VNC client due to improper handling of memory locations. This flaw in the Ultra2 decoder allows attackers to exploit the vulnerability via network connectivity, potentially leading to arbitrary code execution. Users are encouraged to update to the latest revision to mitigate the risk associated with this issue.

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:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.