NULL Pointer Dereference in LibVNCServer Affects Remote Desktop Connectivity
CVE-2020-14396

7.5HIGH

Key Information:

Vendor
Libvnc Project
Status
Libvncserver
Vendor
CVE Published:
17 June 2020

Summary

A potential security weakness has been identified in LibVNCServer prior to version 0.9.13, where a NULL pointer dereference can occur within the libvncclient/tls_openssl.c file. This vulnerability may allow attackers to disrupt remote desktop services, leading to possible service interruptions or unauthorized access.

References

https://github.com/LibVNC/libvncserver/compare/LibVNCServ...
x_refsource_MISC
https://github.com/LibVNC/libvncserver/commit/33441d90a50...
x_refsource_MISC
https://usn.ubuntu.com/4434-1/
vendor-advisoryx_refsource_UBUNTU

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

.