UnratedFix available
libsndfile — security advisory
The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.
- Products
- libsndfile
- Affected versions
- Not specified
- Fixed versions
- 1.0.21-3
- CVEs
- CVE-2009-4835
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 23:28 UTC · Revision 1
Source evidence
The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.
osv:DEBIAN-CVE-2009-4835
libsndfile
Fixed versions: 1.0.21-3
libsndfile
Fixed versions: 1.0.21-3
libsndfile
Fixed versions: 1.0.21-3
Complete source record
{
"id": "4dfb106deed60b1958509eac56cdc07a3c96176dd9a3972645414ff7ba9c3f17",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2009-4835",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2009-4835",
"summary": "The (1) htk_read_header, (2) alaw_init, (3) ulaw_init, (4) pcm_init, (5) float32_init, and (6) sds_read_header functions in libsndfile 1.0.20 allow context-dependent attackers to cause a denial of service (divide-by-zero error and application crash) via a crafted audio file.",
"evidence": "osv:DEBIAN-CVE-2009-4835",
"products": [
{
"name": {
"value": "libsndfile",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.21-3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libsndfile",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.21-3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libsndfile",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.0.21-3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2009-4835",
"aliases": [
"DEBIAN-CVE-2009-4835"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.21-3"
}
]
}
],
"package": {
"name": "libsndfile",
"purl": "pkg:deb/debian/libsndfile?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-4835.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.21-3"
}
]
}
],
"package": {
"name": "libsndfile",
"purl": "pkg:deb/debian/libsndfile?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-4835.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.21-3"
}
]
}
],
"package": {
"name": "libsndfile",
"purl": "pkg:deb/debian/libsndfile?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-4835.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-23T17:47:44.325220547Z",
"provider": "osv",
"upstream": [
"CVE-2009-4835"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2009-4835"
]
},
"related_cves": [
{
"value": "CVE-2009-4835",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 418640,
"published_at": "2010-05-06T12:47:23.3+00:00"
}