MediumFix available
djvulibre — security advisory
An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.
- Products
- djvulibre
- Affected versions
- Not specified
- Fixed versions
- 3.5.27.1-12
- CVEs
- CVE-2021-3630
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 00:37 UTC · Revision 1
Source evidence
An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.
osv:DEBIAN-CVE-2021-3630
djvulibre
Fixed versions: 3.5.27.1-12
djvulibre
Fixed versions: 3.5.27.1-12
djvulibre
Fixed versions: 3.5.27.1-12
Complete source record
{
"id": "8dfd811e4e98e1ee643e9145a88aa7405205733412a91c6d91220ddb0a20538d",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-3630",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-3630",
"summary": "An out-of-bounds write vulnerability was found in DjVuLibre in DJVU::DjVuTXT::decode() in DjVuText.cpp via a crafted djvu file which may lead to crash and segmentation fault. This flaw affects DjVuLibre versions prior to 3.5.28.",
"evidence": "osv:DEBIAN-CVE-2021-3630",
"products": [
{
"name": {
"value": "djvulibre",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "3.5.27.1-12",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "djvulibre",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
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"value": "3.5.27.1-12",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2021-3630",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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],
"package": {
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"purl": "pkg:deb/debian/djvulibre?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3630.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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],
"package": {
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"purl": "pkg:deb/debian/djvulibre?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3630.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
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{
"ranges": [
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],
"package": {
"name": "djvulibre",
"purl": "pkg:deb/debian/djvulibre?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-3630.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:03:30.148061714Z",
"provider": "osv",
"upstream": [
"CVE-2021-3630"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-3630"
]
},
"related_cves": [
{
"value": "CVE-2021-3630",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 421709,
"published_at": "2021-06-30T14:15:08.797+00:00"
}