CVE-2020-21680 : What You Need to Know
Learn about CVE-2020-21680, a vulnerability in fig2dev 3.2.7b allowing attackers to trigger a denial of service attack by converting a xfig file into pict2e format. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A stack-based buffer overflow in the put_arrow() component in genpict2e.c of fig2dev 3.2.7b allows attackers to cause a denial of service (DOS) via converting a xfig file into pict2e format.
Understanding CVE-2020-21680
This CVE describes a vulnerability in fig2dev 3.2.7b that can be exploited to trigger a denial of service attack.
What is CVE-2020-21680?
The vulnerability arises from a stack-based buffer overflow in the put_arrow() component of genpict2e.c in fig2dev 3.2.7b, enabling attackers to disrupt services by converting a specific file format.
The Impact of CVE-2020-21680
The exploitation of this vulnerability can lead to a denial of service (DOS) attack, potentially causing system unavailability and disruption of services.
Technical Details of CVE-2020-21680
This section provides more in-depth technical insights into the vulnerability.
Vulnerability Description
The vulnerability is a stack-based buffer overflow in the put_arrow() component of genpict2e.c in fig2dev 3.2.7b.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
Attackers can exploit this vulnerability by converting a xfig file into pict2e format, triggering the stack-based buffer overflow.
Mitigation and Prevention
Protecting systems from CVE-2020-21680 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches or updates provided by the software vendor.
- Implement network-level protections to filter out potentially malicious inputs.
- Monitor system logs for any unusual activities that could indicate an ongoing attack.
Long-Term Security Practices
- Conduct regular security assessments and penetration testing to identify and address vulnerabilities proactively.
- Educate users and administrators about safe file handling practices to prevent exploitation of similar vulnerabilities.
Patching and Updates
Regularly check for security advisories from the software vendor and apply patches promptly to mitigate the risk of exploitation.