#VU29374 Allocation of Resources Without Limits or Throttling in LibVNCServer - CVE-2020-14405

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Main Vulnerability Database Vulnerabilities #VU29374

#VU29374 Allocation of Resources Without Limits or Throttling in LibVNCServer - CVE-2020-14405

Published: June 30, 2020


Vulnerability identifier: #VU29374
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-14405
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
LibVNCServer
Software vendor:
LibVNC

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists in libvncclient/rfbproto.c due to LibVNCServer does not limit TextChat size.A remote attacker who controls a malicious VNC server can send large amounts of data to the client application and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links