CVE-2018-3840 : What You Need to Know
Learn about CVE-2018-3840, a medium severity vulnerability in Pixar Renderman IT Display Service version 21.6. Find out how attackers can exploit network packet processing flaws to launch denial-of-service attacks and discover mitigation strategies.
A security flaw in Pixar Renderman IT Display Service version 21.6 allows denial-of-service attacks due to improper network packet processing. The vulnerability can lead to a null pointer dereference, enabling attackers to target the application after launch.
Understanding CVE-2018-3840
This CVE involves a denial-of-service vulnerability in Pixar Renderman IT Display Service version 21.6.
What is CVE-2018-3840?
The vulnerability in Renderman 21.6 allows attackers to execute denial-of-service attacks by exploiting the lack of proper validation in network packet processing.
The Impact of CVE-2018-3840
The vulnerability poses a medium severity risk with a CVSS base score of 5.3. It can result in service disruption through denial-of-service attacks.
Technical Details of CVE-2018-3840
This section provides technical details of the vulnerability.
Vulnerability Description
The flaw in Pixar Renderman IT Display Service version 21.6 arises from inadequate validation of network packets, leading to a null pointer dereference.
Affected Systems and Versions
- Product: Pixar Renderman
- Vendor: Talos
- Version: Renderman 21.6
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Availability Impact: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Mitigation and Prevention
Protecting systems from CVE-2018-3840 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches promptly.
- Monitor network traffic for any suspicious activity.
- Restrict network access to vulnerable services.
Long-Term Security Practices
- Regularly update software and security patches.
- Conduct security assessments and penetration testing.
- Implement network segmentation to contain potential attacks.
- Educate users on safe computing practices.
Patching and Updates
- Stay informed about security advisories from Talos and Pixar Renderman.
- Install security updates and patches as soon as they are available.