Medium
bluez — security advisory
BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of OBEX protocol parameters. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20937.
- Products
- bluez
- Affected versions
- 5.66-1, 5.66-1+deb12u1, 5.66-1+deb12u2, 5.68-1, 5.68-2, 5.69-1, 5.70-1, 5.70-1.1, 5.70-1.1~exp0, 5.71-1, 5.73-1, 5.73-1.1, 5.77-1, 5.79-1, 5.79-2, 5.82-1, 5.82-1.1, 5.83-1, 5.83-1~exp1, 5.84-1, 5.85-1, 5.85-2, 5.85-3, 5.85-4, 5.87-1, 5.87-2, 5.87-3, 5.87-4, 5.87-5
- Fixed versions
- Not specified
- CVEs
- CVE-2023-51594
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:49 UTC · Revision 1
Source evidence
BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of OBEX protocol parameters. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20937.
osv:DEBIAN-CVE-2023-51594
bluez
Fixed versions: Not specified
bluez
Fixed versions: Not specified
bluez
Fixed versions: Not specified
Complete source record
{
"id": "88ed5500907ba9a98f62d8c6fb795149c97ed4be5da9d04c5b434a813b0cad34",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-51594",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-51594",
"summary": "BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of OBEX protocol parameters. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20937.",
"evidence": "osv:DEBIAN-CVE-2023-51594",
"products": [
{
"name": {
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"evidence": "/affected/0/package/name"
},
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},
{
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},
{
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"evidence": "/affected/0/versions"
},
{
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},
{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
"value": "5.87-2",
"evidence": "/affected/0/versions"
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{
"value": "5.87-3",
"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
},
{
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}
]
},
{
"name": {
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},
"prerequisites": [],
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{
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{
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{
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{
"value": "5.84-1",
"evidence": "/affected/1/versions"
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{
"value": "5.85-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.85-2",
"evidence": "/affected/1/versions"
},
{
"value": "5.85-3",
"evidence": "/affected/1/versions"
},
{
"value": "5.85-4",
"evidence": "/affected/1/versions"
},
{
"value": "5.87-1",
"evidence": "/affected/1/versions"
},
{
"value": "5.87-2",
"evidence": "/affected/1/versions"
},
{
"value": "5.87-3",
"evidence": "/affected/1/versions"
},
{
"value": "5.87-4",
"evidence": "/affected/1/versions"
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{
"value": "5.87-5",
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},
{
"name": {
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},
"prerequisites": [],
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"affected_versions": [
{
"value": "5.82-1.1",
"evidence": "/affected/2/versions"
},
{
"value": "5.83-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.83-1~exp1",
"evidence": "/affected/2/versions"
},
{
"value": "5.84-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.85-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.85-2",
"evidence": "/affected/2/versions"
},
{
"value": "5.85-3",
"evidence": "/affected/2/versions"
},
{
"value": "5.85-4",
"evidence": "/affected/2/versions"
},
{
"value": "5.87-1",
"evidence": "/affected/2/versions"
},
{
"value": "5.87-2",
"evidence": "/affected/2/versions"
},
{
"value": "5.87-3",
"evidence": "/affected/2/versions"
},
{
"value": "5.87-4",
"evidence": "/affected/2/versions"
},
{
"value": "5.87-5",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "DEBIAN-CVE-2023-51594",
"aliases": [
"DEBIAN-CVE-2023-51594"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"5.66-1",
"5.66-1+deb12u1",
"5.66-1+deb12u2",
"5.68-1",
"5.68-2",
"5.69-1",
"5.70-1",
"5.70-1.1",
"5.70-1.1~exp0",
"5.71-1",
"5.73-1",
"5.73-1.1",
"5.77-1",
"5.79-1",
"5.79-2",
"5.82-1",
"5.82-1.1",
"5.83-1",
"5.83-1~exp1",
"5.84-1",
"5.85-1",
"5.85-2",
"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2",
"5.87-3",
"5.87-4",
"5.87-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51594.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
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"package": {
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"ecosystem": "Debian:13"
},
"versions": [
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"5.85-1",
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"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2",
"5.87-3",
"5.87-4",
"5.87-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51594.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "bluez",
"purl": "pkg:deb/debian/bluez?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
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"5.83-1",
"5.83-1~exp1",
"5.84-1",
"5.85-1",
"5.85-2",
"5.85-3",
"5.85-4",
"5.87-1",
"5.87-2",
"5.87-3",
"5.87-4",
"5.87-5"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-51594.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:01:55.665775466Z",
"provider": "osv",
"upstream": [
"CVE-2023-51594"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-51594"
]
},
"related_cves": [
{
"value": "CVE-2023-51594",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 455763,
"published_at": "2024-05-03T03:16:20.123+00:00"
}