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CVE-2018-3840 Details

Description

A denial-of-service vulnerability exists in the Pixar Renderman IT Display Service 21.6 (0x67). The vulnerability is present in the parsing of a network packet without proper validation of the packet. The data read by the application is not validated, and its use can lead to a null pointer dereference. The IT application is opened by a user and then listens for a connection on port 4001. An attacker can deliver an attack once the application has been opened.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0523	CVE	ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0523	[email protected]	ExploitThird Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]
CWE-476	NULL Pointer Dereference	[email protected]

Affected Products

Product	Versions
pixar renderman	21.6
CPE cpe:2.3:a:pixar:renderman:21.6:::::::* Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Feb 2, 2023	Modified Analysis	[email protected]
Apr 19, 2022	CVE Modified	[email protected]
Aug 31, 2018	Initial Analysis	[email protected]