ubuntu-cve-2023-30630
Vulnerability from osv_ubuntu
Published
2023-04-13 16:15
Modified
2026-05-20 15:02
Summary
Details
Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly).
Severity
7.1 (High)
7.1 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dmidecode",
"binary_version": "2.12-2"
}
]
},
"package": {
"ecosystem": "Ubuntu:14.04:LTS",
"name": "dmidecode",
"purl": "pkg:deb/ubuntu/dmidecode@2.12-2?arch=source\u0026distro=trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.12-2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dmidecode",
"binary_version": "3.0-2ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "dmidecode",
"purl": "pkg:deb/ubuntu/dmidecode@3.0-2ubuntu0.2?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.12-4",
"3.0-2",
"3.0-2ubuntu0.1",
"3.0-2ubuntu0.2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dmidecode",
"binary_version": "3.1-1ubuntu0.1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "dmidecode",
"purl": "pkg:deb/ubuntu/dmidecode@3.1-1ubuntu0.1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.1-1",
"3.1-1ubuntu0.1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dmidecode",
"binary_version": "3.2-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "dmidecode",
"purl": "pkg:deb/ubuntu/dmidecode@3.2-3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2-2",
"3.2-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cpu-x",
"binary_version": "3.2.4-3build2"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "cpu-x",
"purl": "pkg:deb/ubuntu/cpu-x@3.2.4-3build2?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.2.4-1",
"3.2.4-2",
"3.2.4-3",
"3.2.4-3build1",
"3.2.4-3build2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cpu-x",
"binary_version": "4.2.0-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "cpu-x",
"purl": "pkg:deb/ubuntu/cpu-x@4.2.0-1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.1.0-2",
"4.2.0-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "dmidecode",
"binary_version": "3.3-3ubuntu0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "dmidecode",
"purl": "pkg:deb/ubuntu/dmidecode@3.3-3ubuntu0.2?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.3-3",
"3.3-3ubuntu0.1",
"3.3-3ubuntu0.2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cpu-x",
"binary_version": "5.0.3-2build2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "cpu-x",
"purl": "pkg:deb/ubuntu/cpu-x@5.0.3-2build2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.5.3-1",
"5.0.3-2",
"5.0.3-2build1",
"5.0.3-2build2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cpu-x",
"binary_version": "5.3.1-0.3"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "cpu-x",
"purl": "pkg:deb/ubuntu/cpu-x@5.3.1-0.3?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.1.3-0.1",
"5.2.0-0.4",
"5.3.1-0.2",
"5.3.1-0.3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "cpu-x",
"binary_version": "5.4.0-0.2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "cpu-x",
"purl": "pkg:deb/ubuntu/cpu-x@5.4.0-0.2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.3.1-0.3",
"5.4.0-0.2"
]
}
],
"aliases": [],
"details": "Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly).",
"id": "UBUNTU-CVE-2023-30630",
"modified": "2026-05-20T15:02:35Z",
"published": "2023-04-13T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-30630"
},
{
"type": "REPORT",
"url": "https://lists.nongnu.org/archive/html/dmidecode-devel/2023-03/msg00003.html"
},
{
"type": "REPORT",
"url": "https://github.com/adamreiser/dmiwrite"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-30630"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-30630"
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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