Medium
connman — security advisory
In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.
- Products
- connman
- Affected versions
- 1.21-1.2, 1.21-1.2+deb8u1build0.16.04.1, 1.21-1.2+deb8u1ubuntu0.1~esm1, 1.21-1.2build1, 1.21-1.2build2, 1.35-1, 1.35-2, 1.35-6, 1.35-6ubuntu0.1~esm1, 1.36-2.2build1, 1.36-2.3, 1.36-2.3build1, 1.36-2.3ubuntu0.1, 1.36-2build1, 1.36-2ubuntu0.1, 1.41-3, 1.42-1, 1.42-3, 1.42-5, 1.42-5build2, 1.42-5build3, 1.43-1, 1.44-1, 1.44-2, 1.44-3, 1.45-2, 1.45-3, 2.0-2
- Fixed versions
- Not specified
- CVEs
- CVE-2025-32366
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:48 UTC · Revision 1
Source evidence
In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.
osv:UBUNTU-CVE-2025-32366
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
connman
Fixed versions: Not specified
Complete source record
{
"id": "d291f2e4ba2f046765b60e19cb71053d68d3e1d3c9be5083658cd23b5681875d",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2025-32366",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2025-32366",
"summary": "In ConnMan through 1.44, parse_rr in dnsproxy.c has a memcpy length that depends on an RR RDLENGTH value, i.e., *rdlen=ntohs(rr->rdlen) and memcpy(response+offset,*end,*rdlen) without a check for whether the sum of *end and *rdlen exceeds max. Consequently, *rdlen may be larger than the amount of remaining packet data in the current state of parsing. Values of stack memory locations may be sent over the network in a response.",
"evidence": "osv:UBUNTU-CVE-2025-32366",
"products": [
{
"name": {
"value": "connman",
"evidence": "/affected/0/package/name"
},
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"fixed_versions": [],
"affected_versions": [
{
"value": "1.21-1.2",
"evidence": "/affected/0/versions"
},
{
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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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{
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{
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{
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{
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"evidence": "/affected/3/versions"
}
]
},
{
"name": {
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"evidence": "/affected/4/package/name"
},
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"evidence": "/affected/4/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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"evidence": "/affected/5/versions"
},
{
"value": "1.44-1",
"evidence": "/affected/5/versions"
},
{
"value": "1.44-2",
"evidence": "/affected/5/versions"
},
{
"value": "1.44-3",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "connman",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.45-3",
"evidence": "/affected/6/versions"
},
{
"value": "2.0-2",
"evidence": "/affected/6/versions"
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]
},
{
"name": {
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"evidence": "/affected/7/package/name"
},
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"affected_versions": [
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"evidence": "/affected/7/versions"
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{
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"evidence": "/affected/7/versions"
},
{
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]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2025-32366",
"aliases": [
"UBUNTU-CVE-2025-32366"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "connman",
"purl": "pkg:deb/ubuntu/connman?arch=source&distro=esm-apps%2Fxenial",
"ecosystem": "Ubuntu:Pro:16.04:LTS"
},
"versions": [
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"1.21-1.2build1",
"1.21-1.2build2",
"1.21-1.2+deb8u1build0.16.04.1",
"1.21-1.2+deb8u1ubuntu0.1~esm1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "connman",
"binary_version": "1.21-1.2+deb8u1ubuntu0.1~esm1"
},
{
"binary_name": "connman-vpn",
"binary_version": "1.21-1.2+deb8u1ubuntu0.1~esm1"
}
]
}
},
{
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"package": {
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"ecosystem": "Ubuntu:Pro:18.04:LTS"
},
"versions": [
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"1.35-2",
"1.35-6",
"1.35-6ubuntu0.1~esm1"
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"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2025/UBUNTU-CVE-2025-32366.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "connman",
"binary_version": "1.35-6ubuntu0.1~esm1"
},
{
"binary_name": "connman-vpn",
"binary_version": "1.35-6ubuntu0.1~esm1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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],
"package": {
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"purl": "pkg:deb/ubuntu/connman?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
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"1.36-2ubuntu0.1"
],
"database_specific": {
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},
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{
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},
{
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}
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},
{
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],
"package": {
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"purl": "pkg:deb/ubuntu/connman?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
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"1.36-2.3",
"1.36-2.3build1",
"1.36-2.3ubuntu0.1"
],
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},
"ecosystem_specific": {
"binaries": [
{
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},
{
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}
},
{
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],
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},
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"1.42-3",
"1.42-5",
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],
"modified": "2026-10-17T12:57:28.058927719Z",
"provider": "osv",
"upstream": [
"CVE-2025-32366"
],
"references": [
"https://ubuntu.com/security/CVE-2025-32366",
"https://www.cve.org/CVERecord?id=CVE-2025-32366",
"https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n1001",
"https://web.git.kernel.org/pub/scm/network/connman/connman.git/tree/src/dnsproxy.c?h=1.44#n988"
]
},
"related_cves": [
{
"value": "CVE-2025-32366",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 357555,
"published_at": "2025-04-05T23:15:00+00:00"
}