Heap Out-of-Bound Write Vulnerability in LibVNC Client Code by LibVNC
CVE-2018-20020

9.8CRITICAL

Key Information:

Vendor
Libvnc Project
Status
Libvnc
Vendor
CVE Published:
19 December 2018

Summary

LibVNC prior to a specific commit contains a vulnerability that allows for a heap out-of-bound write in the VNC client code. This flaw can lead to potential remote code execution, enabling an attacker to execute arbitrary code on the affected system. Users are urged to upgrade to a patched version to safeguard their applications.

Affected Version(s)

LibVNC commit 7b1ef0ffc4815cab9a96c7278394152bdc89dc4d

References

https://www.debian.org/security/2019/dsa-4383
vendor-advisoryx_refsource_DEBIAN
https://lists.debian.org/debian-lts-announce/2018/12/msg0...
mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3877-1/
vendor-advisoryx_refsource_UBUNTU

EPSS Score

16% chance of being exploited in the next 30 days.

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

.