Memory Leak Vulnerabilities in UltraVNC Client
CVE-2019-8259

7.5HIGH

Key Information:

Vendor

Ultravnc

Status
Vendor
CVE Published:
5 March 2019

What is CVE-2019-8259?

UltraVNC revision 1198 is impacted by multiple memory leak vulnerabilities within its VNC client code, which can expose sensitive information by allowing an attacker to read stack memory. These vulnerabilities can be exploited remotely over network connections and, when combined with other weaknesses, may allow an attacker to bypass Address Space Layout Randomization (ASLR). Updates in revision 1199 have addressed these vulnerabilities, making it essential for users to upgrade to mitigate the risks associated with information disclosure.

Affected Version(s)

UltraVNC 1.2.2.3

References

CVSS V3.1

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

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.