High severity · published Nov 19, 2021
CVE-2021-21899
A code execution vulnerability exists in the dwgCompressor::copyCompBytes21 functionality of LibreCad libdxfrw 2.2.0-rc2-19-ge02f3580
8.8
CVSS
2.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.8% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0; 11.0 · source: NVD
FE
Fedora · Fedoraproject
34; 35 · source: NVD
LI
Libdxfrw · Librecad
2.2.0-rc2-19-ge02f3580 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-21899
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-21899
Mailing List
https://lists.debian.org/debian-lts-announce/2021/12/msg00002.html
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RDI3HCTCACMIC7I4ILB3NRU6DCMADI5H/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZTIAMP7QJDKV4ADDLR4GVVX2TXYLHVOZ/
security.gentoo.org
https://security.gentoo.org/glsa/202305-26
Exploit
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1350
Third Party Advisory
https://www.debian.org/security/2022/dsa-5077
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