Out-of-Bounds Read Vulnerability in UltraVNC by UltraVNC Team
CVE-2019-8260

9.8CRITICAL

Key Information:

Vendor

Ultravnc

Status
Ultravnc
Vendor
CVE Published:
5 March 2019

What is CVE-2019-8260?

UltraVNC revision 1199 contains an out-of-bounds read vulnerability linked to the VNC client RRE decoder, which arises from a multiplication overflow issue. This flaw can be exploited remotely, potentially allowing attackers to read memory that should not be accessible. As a result, the security of systems relying on this version of UltraVNC may be at risk. Users are advised to upgrade to revision 1200, where this vulnerability has been addressed.

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

.