Vulnerability Details : 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.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-45343
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:a:librecad:librecad:2.2.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-45343
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 47 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-45343
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2021-45343
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-45343
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VUMH3CWGVSMR2UIZEA35Q5UB7PDVVVYS/
[SECURITY] Fedora 34 Update: libdxfrw-1.0.1-3.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.debian.org/security/2022/dsa-5077
Debian -- Security Information -- DSA-5077-1 librecadThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FCC2FZ6HZOIK3775K4MTCOUHX6PLGPEL/
[SECURITY] Fedora 35 Update: librecad-2.2.0-0.15.rc4.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://github.com/LibreCAD/LibreCAD/issues/1468
NULL pointer dereference in DXF parser, HATCH code 93 · Issue #1468 · LibreCAD/LibreCAD · GitHubExploit;Issue Tracking;Patch;Third Party Advisory
-
https://security.gentoo.org/glsa/202305-26
LibreCAD: Multiple Vulnerabilities (GLSA 202305-26) — Gentoo security
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