CVE-2017-2923 : Security Advisory and Response
Learn about CVE-2017-2923 affecting FreeXL 1.0.3. Discover the impact, technical details, and mitigation steps for this heap-based buffer overflow vulnerability leading to remote code execution.
FreeXL 1.0.3 has a heap-based buffer overflow vulnerability that can lead to remote code execution when processing a specially crafted XLS file.
Understanding CVE-2017-2923
FreeXL 1.0.3 vulnerability with a high CVSS base score of 8.8.
What is CVE-2017-2923?
- The 'read_biff_next_record function' in FreeXL 1.0.3 has a heap-based buffer overflow vulnerability.
- Attackers can exploit this by creating a specific XLS file to cause memory corruption and execute remote code.
The Impact of CVE-2017-2923
- CVSS Score: 8.8 (High)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Confidentiality, Integrity, and Availability Impact: High
Technical Details of CVE-2017-2923
FreeXL 1.0.3 vulnerability technical insights.
Vulnerability Description
- Heap-based buffer overflow in the 'read_biff_next_record function' of FreeXL 1.0.3.
Affected Systems and Versions
- Product: FreeXL
- Vendor: Alessandro Furieri
- Version: 1.0.3
Exploitation Mechanism
- Attackers can exploit the vulnerability by sending a malicious XLS file.
Mitigation and Prevention
Protecting systems from CVE-2017-2923.
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Avoid opening XLS files from untrusted sources.
- Implement network security measures to detect and block malicious files.
Long-Term Security Practices
- Regularly update software and security solutions.
- Conduct security training to educate users on identifying phishing attempts.
Patching and Updates
- Check for security advisories from the vendor and apply patches as soon as they are available.