CVE-2021-21899

2021-11-1919:15:08

Debian Security Bug Tracker

security-tracker.debian.org

code execution

vulnerability

librecad

dwgcompressor

heap buffer overflow

malicious file

unix

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.009

Percentile

83.0%

JSON

A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580. A specially-crafted .dwg file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

OSVersionArchitecturePackageVersionFilename
Debian12alllibrecad< 2.1.3-2librecad_2.1.3-2_all.deb
Debian11alllibrecad< 2.1.3-1.3+deb11u1librecad_2.1.3-1.3+deb11u1_all.deb
Debian999alllibrecad< 2.1.3-2librecad_2.1.3-2_all.deb
Debian13alllibrecad< 2.1.3-2librecad_2.1.3-2_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	12	all	librecad	< 2.1.3-2	librecad_2.1.3-2_all.deb
Debian	11	all	librecad	< 2.1.3-1.3+deb11u1	librecad_2.1.3-1.3+deb11u1_all.deb
Debian	999	all	librecad	< 2.1.3-2	librecad_2.1.3-2_all.deb
Debian	13	all	librecad	< 2.1.3-2	librecad_2.1.3-2_all.deb