CVE-2021-43390 : What You Need to Know
Learn about CVE-2021-43390, an Out-of-Bounds Write vulnerability in Open Design Alliance Drawings SDK before 2022.11, enabling code execution in the process context. Find mitigation steps and affected versions.
An Out-of-Bounds Write vulnerability exists in Open Design Alliance Drawings SDK before 2022.11, allowing attackers to execute code in the process context.
Understanding CVE-2021-43390
What is CVE-2021-43390?
This CVE identifies an Out-of-Bounds Write weakness in the parsing of DGN files in Open Design Alliance Drawings SDK before 2022.11.
The Impact of CVE-2021-43390
Exploiting this vulnerability can enable attackers to run malicious code within the current process, potentially leading to unauthorized actions or further compromise.
Technical Details of CVE-2021-43390
Vulnerability Description
Crafted data in a DGN file without proper input validation can trigger a write operation beyond the allocated buffer.
Affected Systems and Versions
- Product: Open Design Alliance Drawings SDK
- Versions affected: Before 2022.11
Exploitation Mechanism
The vulnerability arises from incorrect input data validation in DGN file parsing, leading to an out-of-bounds write operation.
Mitigation and Prevention
Immediate Steps to Take
- Update to Open Design Alliance Drawings SDK version 2022.11 or later.
- Implement proper input validation to prevent crafted data exploitation.
Long-Term Security Practices
- Regularly monitor security advisories from Open Design Alliance for updates.
- Conduct security audits to identify and patch similar vulnerabilities.
Patching and Updates
Apply patches or updates provided by Open Design Alliance promptly to address this vulnerability.