MediumFix available
flac — security advisory
In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174302683
- Products
- flac
- Affected versions
- Not specified
- Fixed versions
- 1.3.4-1
- CVEs
- CVE-2021-0561
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 01:39 UTC · Revision 1
Source evidence
In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174302683
osv:DEBIAN-CVE-2021-0561
flac
Fixed versions: 1.3.4-1
flac
Fixed versions: 1.3.4-1
flac
Fixed versions: 1.3.4-1
Complete source record
{
"id": "d81943271995ca31a31ddb8fef50dc292833e8c16e84c1afd3c3e181c75649b0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2021-0561",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2021-0561",
"summary": "In append_to_verify_fifo_interleaved_ of stream_encoder.c, there is a possible out of bounds write due to a missing bounds check. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-11Android ID: A-174302683",
"evidence": "osv:DEBIAN-CVE-2021-0561",
"products": [
{
"name": {
"value": "flac",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.4-1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flac",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.4-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "flac",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1.3.4-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2021-0561",
"aliases": [
"DEBIAN-CVE-2021-0561"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.4-1"
}
]
}
],
"package": {
"name": "flac",
"purl": "pkg:deb/debian/flac?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-0561.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.4-1"
}
]
}
],
"package": {
"name": "flac",
"purl": "pkg:deb/debian/flac?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-0561.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.4-1"
}
]
}
],
"package": {
"name": "flac",
"purl": "pkg:deb/debian/flac?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-0561.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-23T18:04:48.842682487Z",
"provider": "osv",
"upstream": [
"CVE-2021-0561"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2021-0561"
]
},
"related_cves": [
{
"value": "CVE-2021-0561",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 423918,
"published_at": "2021-06-22T11:15:08.387+00:00"
}