What’s Vulnerable › Vulnerabilities

CVE-2021-45343

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-01-25 · updated 2026-06-17
• Weakness: CWE-476

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.

Affected products

• Debian Linux: 10.0, 11.0
• Fedoraproject Fedora: 34, 35
• LibreCAD: 2.2.0

References

• https://github.com/LibreCAD/LibreCAD/issues/1468
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCC2FZ6HZOIK3775K4MTCOUHX6PLGPEL/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUMH3CWGVSMR2UIZEA35Q5UB7PDVVVYS/
• https://security.gentoo.org/glsa/202305-26
• https://www.debian.org/security/2022/dsa-5077
• https://github.com/LibreCAD/LibreCAD/issues/1468
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FCC2FZ6HZOIK3775K4MTCOUHX6PLGPEL/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUMH3CWGVSMR2UIZEA35Q5UB7PDVVVYS/
• https://security.gentoo.org/glsa/202305-26
• https://www.debian.org/security/2022/dsa-5077

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