Heap Buffer Overflow in LibreCAD's DWG File Processing
CVE-2021-21899

8.8HIGH

Key Information:

Vendor

Librecad

Status
Librecad
Vendor
CVE Published:
19 November 2021

What is CVE-2021-21899?

A vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCAD's libdxfrw that allows an attacker to exploit a specially-crafted .dwg file, leading to a heap buffer overflow. This type of vulnerability may allow the execution of arbitrary code when a malicious file is opened, posing significant risks to system integrity.

Affected Version(s)

LibreCAD LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580

References

https://talosintelligence.com/vulnerability_reports/TALOS...
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

CVSS V3.0

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.