CVE-2021-21900
Gentoo Linux Security Advisory 202305-26
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
A code execution vulnerability exists in the dxfRW::processLType() functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dxf file can lead to a use-after-free vulnerability. An attacker can provide a malicious file to trigger this vulnerability.
Se presenta una vulnerabilidad de ejecución de código en la funcionalidad dxfRW::processLType() de LibreCad libdxfrw versión 2.2.0-rc2-19-ge02f3580. Un archivo .dxf especialmente diseñado puede conllevar a una vulnerabilidad de uso de memoria previamente liberada. Un atacante puede proporcionar un archivo malicioso para desencadenar esta vulnerabilidad
Cody Sixteen discovered that LibreCAD incorrectly handled memory when parsing DXF files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service. This issue only affected Ubuntu 16.04 ESM and Ubuntu 18.04 ESM. Lilith of Cisco Talos discovered that LibreCAD incorrectly handled memory when parsing DWG files. An attacker could use this issue to cause LibreCAD to crash, leading to a denial of service, or possibly execute arbitrary code.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-01-04 CVE Reserved
- 2021-11-19 CVE Published
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2025-05-15 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-416: Use After Free
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2021-1351 | 2024-08-03 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Librecad Search vendor "Librecad" | Libdxfrw Search vendor "Librecad" for product "Libdxfrw" | 2.2.0-rc2-19-ge02f3580 Search vendor "Librecad" for product "Libdxfrw" and version "2.2.0-rc2-19-ge02f3580" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 11.0 Search vendor "Debian" for product "Debian Linux" and version "11.0" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 35 Search vendor "Fedoraproject" for product "Fedora" and version "35" | - |
Affected
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