HighFix available
bind — security advisory
In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.
- Products
- bind
- Affected versions
- Not specified
- Fixed versions
- 9.16.15-r0
- CVEs
- CVE-2021-25215
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 22:03 UTC · Revision 1
Source evidence
In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.
osv:ALPINE-CVE-2021-25215
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
bind
Fixed versions: 9.16.15-r0
Complete source record
{
"id": "5da0e05d9ff8da0c423e664f069b6c691100dc6749aef714db8d63ec2ceefe3e",
"url": "https://osv.dev/vulnerability/ALPINE-CVE-2021-25215",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "ALPINE-CVE-2021-25215",
"summary": "In BIND 9.0.0 -> 9.11.29, 9.12.0 -> 9.16.13, and versions BIND 9.9.3-S1 -> 9.11.29-S1 and 9.16.8-S1 -> 9.16.13-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.11 of the BIND 9.17 development branch, when a vulnerable version of named receives a query for a record triggering the flaw described above, the named process will terminate due to a failed assertion check. The vulnerability affects all currently maintained BIND 9 branches (9.11, 9.11-S, 9.16, 9.16-S, 9.17) as well as all other versions of BIND 9.",
"evidence": "osv:ALPINE-CVE-2021-25215",
"products": [
{
"name": {
"value": "bind",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/1/package/name"
},
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{
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"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
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{
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],
"affected_versions": []
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{
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{
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{
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],
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},
{
"name": {
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"evidence": "/affected/7/package/name"
},
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"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/8/package/name"
},
"prerequisites": [],
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{
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"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind",
"evidence": "/affected/10/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/10/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind",
"evidence": "/affected/11/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/11/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind",
"evidence": "/affected/12/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/12/ranges"
}
],
"affected_versions": []
},
{
"name": {
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"evidence": "/affected/13/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/13/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bind",
"evidence": "/affected/14/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "9.16.15-r0",
"evidence": "/affected/14/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "ALPINE-CVE-2021-25215",
"aliases": [
"ALPINE-CVE-2021-25215"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "9.0.0"
},
{
"fixed": "9.16.15-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.10"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-25215.json"
},
"ecosystem_specific": {}
},
{
"ranges": [
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"events": [
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},
{
"fixed": "9.16.15-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.11"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-25215.json"
},
"ecosystem_specific": {}
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{
"ranges": [
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],
"package": {
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"package": {
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"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.13"
},
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"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.14"
},
"database_specific": {
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},
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{
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],
"package": {
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"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.15"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-25215.json"
},
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{
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],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.16"
},
"database_specific": {
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{
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},
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"ecosystem": "Alpine:v3.22"
},
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{
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}
],
"package": {
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"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.23"
},
"database_specific": {
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},
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},
{
"ranges": [
{
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"events": [
{
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},
{
"fixed": "9.16.15-r0"
}
]
}
],
"package": {
"name": "bind",
"purl": "pkg:apk/alpine/bind?arch=source",
"ecosystem": "Alpine:v3.24"
},
"database_specific": {
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},
"ecosystem_specific": {}
}
],
"modified": "2026-10-23T17:17:56.160350277Z",
"provider": "osv",
"upstream": [
"CVE-2021-25215"
],
"references": [
"https://security.alpinelinux.org/vuln/CVE-2021-25215"
]
},
"related_cves": [
{
"value": "CVE-2021-25215",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 415337,
"published_at": "2021-04-29T01:15:08.013+00:00"
}