UnratedFix available
bind9 — security advisory
Use-after-free vulnerability in ISC BIND 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (named daemon crash) via unspecified vectors that cause named to "dereference a freed fetch context."
- Products
- bind9
- Affected versions
- Not specified
- Fixed versions
- 1:9.3.4-2
- CVEs
- CVE-2007-0493
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 15:47 UTC · Revision 1
Source evidence
Use-after-free vulnerability in ISC BIND 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (named daemon crash) via unspecified vectors that cause named to "dereference a freed fetch context."
osv:DEBIAN-CVE-2007-0493
bind9
Fixed versions: 1:9.3.4-2
bind9
Fixed versions: 1:9.3.4-2
bind9
Fixed versions: 1:9.3.4-2
Complete source record
{
"id": "7806d6408ef339d86904f5cb32b00463dd53cd87b8da5e5a2e9b9a6019279a42",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2007-0493",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2007-0493",
"summary": "Use-after-free vulnerability in ISC BIND 9.3.0 up to 9.3.3, 9.4.0a1 up to 9.4.0a6, 9.4.0b1 up to 9.4.0b4, 9.4.0rc1, and 9.5.0a1 (Bind Forum only) allows remote attackers to cause a denial of service (named daemon crash) via unspecified vectors that cause named to \"dereference a freed fetch context.\"",
"evidence": "osv:DEBIAN-CVE-2007-0493",
"products": [
{
"name": {
"value": "bind9",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.3.4-2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind9",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.3.4-2",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind9",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.3.4-2",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "DEBIAN-CVE-2007-0493",
"aliases": [
"DEBIAN-CVE-2007-0493"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.3.4-2"
}
]
}
],
"package": {
"name": "bind9",
"purl": "pkg:deb/debian/bind9?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-0493.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.3.4-2"
}
]
}
],
"package": {
"name": "bind9",
"purl": "pkg:deb/debian/bind9?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-0493.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.3.4-2"
}
]
}
],
"package": {
"name": "bind9",
"purl": "pkg:deb/debian/bind9?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-0493.json"
},
"ecosystem_specific": {
"urgency": "medium"
}
}
],
"modified": "2026-10-21T17:47:39.382919661Z",
"provider": "osv",
"upstream": [
"CVE-2007-0493"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2007-0493"
]
},
"related_cves": [
{
"value": "CVE-2007-0493",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 398429,
"published_at": "2007-01-25T20:28:00+00:00"
}