CVE-2018-3857 : Vulnerability Insights and Analysis
Learn about CVE-2018-3857, a critical vulnerability in Canvas Draw version 4.0.0 by ACD Systems. Attackers can exploit a heap-based buffer overflow in the TIFF parsing feature to execute arbitrary code.
Canvas Draw version 4.0.0 by ACD Systems is susceptible to a heap-based buffer overflow vulnerability in its TIFF parsing feature. Attackers can exploit this flaw to execute arbitrary code by using a specially crafted TIFF image.
Understanding CVE-2018-3857
This CVE entry highlights a critical security issue in Canvas Draw version 4.0.0.
What is CVE-2018-3857?
The vulnerability in the TIFF parsing functionality of Canvas Draw 4.0.0 allows attackers to overwrite arbitrary data by manipulating a crafted TIFF image, potentially leading to code execution.
The Impact of CVE-2018-3857
The vulnerability has a CVSS base score of 8.8, indicating a high severity level. It poses a significant risk to confidentiality, integrity, and availability of affected systems.
Technical Details of CVE-2018-3857
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The heap-based buffer overflow in Canvas Draw 4.0.0 enables out-of-bounds writes when processing malicious TIFF images, facilitating unauthorized code execution.
Affected Systems and Versions
- Product: Canvas Draw
- Vendor: ACD Systems
- Vulnerable Version: ACD Systems Canvas Draw 4.0
Exploitation Mechanism
Attackers can exploit the vulnerability by delivering a specially crafted TIFF image to trigger the heap overflow, potentially gaining control over the affected system.
Mitigation and Prevention
Protecting systems from CVE-2018-3857 requires immediate actions and long-term security measures.
Immediate Steps to Take
- Disable the processing of TIFF images in Canvas Draw until a patch is available.
- Implement network-level controls to filter out potentially malicious TIFF files.
Long-Term Security Practices
- Regularly update Canvas Draw to the latest version to apply security patches.
- Conduct security assessments and penetration testing to identify and address vulnerabilities proactively.
Patching and Updates
ACD Systems should release a patch addressing the heap-based buffer overflow in Canvas Draw 4.0.0 to mitigate the risk of exploitation.