bluez — security advisory
BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device. The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19908.
- Products
- bluez
- Affected versions
- 5.66-1, 5.66-1+deb12u1
- Fixed versions
- 5.66-1+deb12u2, 5.68-1
- CVEs
- CVE-2023-27349
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:39 UTC · Revision 1
Source evidence
BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device. The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19908.
osv:DEBIAN-CVE-2023-27349
bluez
Fixed versions: 5.66-1+deb12u2
bluez
Fixed versions: 5.68-1
bluez
Fixed versions: 5.68-1
Complete source record
{
"id": "a415ed53e07475514cac53a5d11969ae07425bf73062de2713eefdd8fd95a384",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-27349",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-27349",
"summary": "BlueZ Audio Profile AVRCP Improper Validation of Array Index Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code via Bluetooth on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious device. The specific flaw exists within the handling of the AVRCP protocol. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19908.",
"evidence": "osv:DEBIAN-CVE-2023-27349",
"products": [
{
"name": {
"value": "bluez",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.66-1+deb12u2",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "5.66-1",
"evidence": "/affected/0/versions"
},
{
"value": "5.66-1+deb12u1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "bluez",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.68-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "bluez",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "5.68-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-27349",
"aliases": [
"DEBIAN-CVE-2023-27349"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.66-1+deb12u2"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.66-1",
"5.66-1+deb12u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-27349.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.68-1"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-27349.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "5.68-1"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-27349.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:01:22.709236561Z",
"provider": "osv",
"upstream": [
"CVE-2023-27349"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-27349"
]
},
"related_cves": [
{
"value": "CVE-2023-27349",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455477,
"published_at": "2024-05-03T02:15:13.14+00:00"
}