CVE-2018-3840: pixar renderman Improper Input Validation

Vulnerability summary

CVE-2018-3840 is a high (CVSS 7.5) Improper Input Validation vulnerability in pixar renderman. EPSS estimates a 1.62% chance of exploitation in the next 30 days, higher than 75.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 26-06-2018
   PublishedVulnerability first disclosed.
2. 16-09-2024
   Last modifiedVulnerability information updated.

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.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• CWE-476NULL Pointer DereferenceThe product dereferences a pointer that it expects to be valid but is NULL.