CVE-2021-45343
MEDIUMCVSS 5.5/10EPSS 0.90%
Last modified
CVE-2021-45343 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.. EPSS estimates a 0.90% chance of exploitation in the next 30 days.
Description
In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Librecad | Librecad | 2.2.0 |
| Fedoraproject | Fedora | 34 |
| Fedoraproject | Fedora | 35 |
| Debian | Debian Linux | 10.0 |
| Debian | Debian Linux | 11.0 |
References
- https://github.com/LibreCAD/LibreCAD/issues/1468Exploit, Issue Tracking, Patch, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5077Third Party Advisory
- https://github.com/LibreCAD/LibreCAD/issues/1468Exploit, Issue Tracking, Patch, Third Party Advisory
- https://www.debian.org/security/2022/dsa-5077Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-45343?
In LibreCAD 2.2.0, a NULL pointer dereference in the HATCH handling of libdxfrw allows an attacker to crash the application using a crafted DXF document.
How severe is CVE-2021-45343?
CVE-2021-45343 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.90% probability of exploitation in the next 30 days.
How do I fix CVE-2021-45343?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-45343?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST