CVE-2018-3976 Explained : Impact and Mitigation
Learn about CVE-2018-3976, a high-severity vulnerability in ACD Systems' Canvas Draw version 5.0.0.28. Find out how attackers can exploit the flaw to execute arbitrary code and discover mitigation steps.
A vulnerability in ACD Systems' Canvas Draw version 5.0.0.28 allows attackers to execute arbitrary code by exploiting a flaw in parsing CALS Raster file format.
Understanding CVE-2018-3976
This CVE involves an out-of-bounds write vulnerability in Canvas Draw version 5.0.0.28, enabling attackers to overwrite data and execute malicious code.
What is CVE-2018-3976?
The vulnerability in Canvas Draw version 5.0.0.28 arises from improperly parsing CALS Raster files. Attackers can craft a malicious CAL image to trigger an out-of-bounds write, leading to arbitrary code execution.
The Impact of CVE-2018-3976
The impact of this vulnerability is rated as high, with a CVSS base score of 8.8. It poses a significant risk to confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2018-3976
This section provides detailed technical information about the vulnerability.
Vulnerability Description
An exploitable out-of-bounds write vulnerability exists in the CALS Raster file format parsing functionality of Canvas Draw version 5.0.0.28. By processing a specially crafted CAL image, attackers can trigger the vulnerability and execute arbitrary code.
Affected Systems and Versions
- Product: ACD Systems
- Vendor: Talos
- Vulnerable Version: ACDSystems Canvas Draw 5.0.0.28
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Exploitation Impact: High
Mitigation and Prevention
Protecting systems from CVE-2018-3976 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Canvas Draw to a patched version.
- Avoid opening CALS Raster files from untrusted sources.
- Implement network security measures to prevent exploitation.
Long-Term Security Practices
- Regularly update software and security patches.
- Conduct security training to raise awareness of file handling best practices.
Patching and Updates
- Talos may release patches or updates to address the vulnerability. Stay informed about security advisories and apply patches promptly.