HighFix available
cloudcompare, dxflib and 2 more products — security advisory
A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
- Products
- cloudcompare, dxflib, horizon-eda, librecad
- Affected versions
- 2.2.0-1, 2.2.0.2-1, 2.2.0.2-2, 2.2.0.2-3, 2.4.0-1, 2.4.0-1.1, 2.5.0-1, 2.6.0-1, 2.6.0-2, 2.6.0-2.1, 2.6.0-2.2, 2.6.0-2.3, 2.6.0-3
- Fixed versions
- 2.11.3-7.1, 3.26.4-1
- CVEs
- CVE-2021-21897
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:43 UTC · Revision 1
Source evidence
A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
osv:DEBIAN-CVE-2021-21897
cloudcompare
Fixed versions: 2.11.3-7.1
cloudcompare
Fixed versions: 2.11.3-7.1
cloudcompare
Fixed versions: 2.11.3-7.1
dxflib
Fixed versions: 3.26.4-1
dxflib
Fixed versions: 3.26.4-1
dxflib
Fixed versions: 3.26.4-1
horizon-eda
Fixed versions: Not specified
horizon-eda
Fixed versions: Not specified
horizon-eda
Fixed versions: Not specified
librecad
Fixed versions: Not specified
librecad
Fixed versions: Not specified
librecad
Fixed versions: Not specified
Complete source record
{
"id": "1d03d6e0fc4fa2df27d6db5bb4f51661a38cdfeeca0fd97b56868115f75633d5",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-21897",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-21897",
"summary": "A code execution vulnerability exists in the DL_Dxf::handleLWPolylineData functionality of Ribbonsoft dxflib 3.17.0. A specially-crafted .dxf file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.",
"evidence": "osv:DEBIAN-CVE-2021-21897",
"products": [
{
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"evidence": "/affected/0/package/name"
},
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{
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"evidence": "/affected/0/ranges"
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{
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{
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{
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{
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{
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{
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{
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"evidence": "/affected/6/versions"
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{
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{
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{
"name": {
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{
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{
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{
"name": {
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},
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"affected_versions": [
{
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"evidence": "/affected/8/versions"
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{
"value": "2.6.0-2.3",
"evidence": "/affected/8/versions"
},
{
"value": "2.6.0-3",
"evidence": "/affected/8/versions"
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]
},
{
"name": {
"value": "librecad",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "2.2.0-1",
"evidence": "/affected/9/versions"
},
{
"value": "2.2.0.2-1",
"evidence": "/affected/9/versions"
},
{
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{
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{
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{
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"evidence": "/affected/10/versions"
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{
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"evidence": "/affected/10/versions"
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},
{
"name": {
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"evidence": "/affected/11/package/name"
},
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{
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"evidence": "/affected/11/versions"
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{
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"evidence": "/affected/11/versions"
},
{
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"evidence": "/affected/11/versions"
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]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2021-21897",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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},
{
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}
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}
],
"package": {
"name": "cloudcompare",
"purl": "pkg:deb/debian/cloudcompare?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-21897.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
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},
{
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"package": {
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"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-21897.json"
},
"ecosystem_specific": {
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},
{
"ranges": [
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"package": {
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"purl": "pkg:deb/debian/cloudcompare?arch=source&distro=forky",
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"ecosystem": "Debian:12"
},
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},
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{
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],
"package": {
"name": "dxflib",
"purl": "pkg:deb/debian/dxflib?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
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},
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},
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"package": {
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"package": {
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},
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},
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},
{
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},
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],
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},
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}
],
"modified": "2026-10-23T18:04:50.734932830Z",
"provider": "osv",
"upstream": [
"CVE-2021-21897"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-21897"
]
},
"related_cves": [
{
"value": "CVE-2021-21897",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 424088,
"published_at": "2021-09-08T16:15:07.267+00:00"
}