CVE-2020-13494 : Exploit Details and Defense Strategies

A heap overflow vulnerability in Pixar OpenUSD 20.05 can lead to out of bounds memory access and information disclosure.

Understanding CVE-2020-13494

A vulnerability in Pixar OpenUSD 20.05 parsing of compressed string tokens in binary USD files.

What is CVE-2020-13494?

A heap overflow vulnerability in Pixar OpenUSD 20.05
Triggered by a specially crafted malformed file
Can result in out of bounds memory access and information disclosure
Could be exploited to bypass mitigations

The Impact of CVE-2020-13494

Base Score: 4.3 (Medium)
Attack Complexity: Low
Attack Vector: Network
User Interaction: Required
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: None
Scope: Unchanged
Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Technical Details of CVE-2020-13494

A vulnerability in Pixar OpenUSD 20.05 parsing of compressed string tokens in binary USD files.

Vulnerability Description

Heap overflow vulnerability
Triggered by parsing compressed string tokens

Affected Systems and Versions

Product: Pixar
Versions: Pixar OpenUSD 20.05, Apple macOS Catalina 10.15.3

Exploitation Mechanism

Attacker provides a malformed file
Victim needs to access the malicious file

Mitigation and Prevention

Immediate Steps to Take:

Avoid opening files from untrusted sources
Apply security patches promptly Long-Term Security Practices:
Regularly update software and systems
Implement network segmentation
Conduct security training for users
Monitor for unusual file access
Utilize intrusion detection systems
Employ file integrity monitoring
Backup critical data regularly
Follow secure coding practices
Conduct regular security assessments
Patching and Updates:
Apply vendor-supplied patches
Keep software up to date