usn-7340-1
Vulnerability from osv_ubuntu
Published
2025-03-11 03:13
Modified
2026-06-25 10:46
Summary
openvpn vulnerabilities
Details
It was discovered that OpenVPN did not perform proper input validation when generating a TLS key under certain configuration, which could lead to a buffer overflow. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS. (CVE-2017-12166)
Reynir Björnsson discovered that OpenVPN incorrectly handled certain control channel messages with nonprintable characters. A remote attacker could possibly use this issue to cause OpenVPN to consume resources, or fill up log files with garbage, leading to a denial of service. (CVE-2024-5594)
References
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2017-12166",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2024-5594",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:14.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "openvpn",
"binary_version": "2.3.2-7ubuntu3.2+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "openvpn",
"purl": "pkg:deb/ubuntu/openvpn@2.3.2-7ubuntu3.2+esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.2-7ubuntu3.2+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.2-4ubuntu1",
"2.3.2-5ubuntu1",
"2.3.2-7ubuntu1",
"2.3.2-7ubuntu2",
"2.3.2-7ubuntu3",
"2.3.2-7ubuntu3.1",
"2.3.2-7ubuntu3.2",
"2.3.2-7ubuntu3.2+esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2017-12166",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2024-5594",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:16.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "openvpn",
"binary_version": "2.3.10-1ubuntu2.2+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "openvpn",
"purl": "pkg:deb/ubuntu/openvpn@2.3.10-1ubuntu2.2+esm2?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.3.10-1ubuntu2.2+esm2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.3.7-1ubuntu1",
"2.3.7-2ubuntu1",
"2.3.8-1ubuntu1",
"2.3.10-1ubuntu1",
"2.3.10-1ubuntu2",
"2.3.10-1ubuntu2.1",
"2.3.10-1ubuntu2.2",
"2.3.10-1ubuntu2.2+esm1"
]
},
{
"database_specific": {
"cves_map": {
"cves": [
{
"id": "CVE-2024-5594",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
}
],
"ecosystem": "Ubuntu:Pro:18.04:LTS"
}
},
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "openvpn",
"binary_version": "2.4.4-2ubuntu1.7+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:18.04:LTS",
"name": "openvpn",
"purl": "pkg:deb/ubuntu/openvpn@2.4.4-2ubuntu1.7+esm1?arch=source\u0026distro=esm-infra/bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.4-2ubuntu1.7+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.4.3-4ubuntu1",
"2.4.4-1ubuntu1",
"2.4.4-2ubuntu1",
"2.4.4-2ubuntu1.1",
"2.4.4-2ubuntu1.2",
"2.4.4-2ubuntu1.3",
"2.4.4-2ubuntu1.5",
"2.4.4-2ubuntu1.6",
"2.4.4-2ubuntu1.7"
]
}
],
"aliases": [],
"details": "It was discovered that OpenVPN did not perform proper input validation\nwhen generating a TLS key under certain configuration, which could lead to\na buffer overflow. An attacker could possibly use this issue to cause a\ndenial of service or execute arbitrary code. This issue only affected\nUbuntu 14.04 LTS, Ubuntu 16.04 LTS. (CVE-2017-12166)\n\nReynir Bj\u00f6rnsson discovered that OpenVPN incorrectly handled certain\ncontrol channel messages with nonprintable characters. A remote attacker\ncould possibly use this issue to cause OpenVPN to consume resources, or\nfill up log files with garbage, leading to a denial of service.\n(CVE-2024-5594)\n",
"id": "USN-7340-1",
"modified": "2026-06-25T10:46:42Z",
"published": "2025-03-11T03:13:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-7340-1"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2017-12166"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2024-5594"
}
],
"related": [],
"schema_version": "1.7.0",
"summary": "openvpn vulnerabilities",
"upstream": [
"UBUNTU-CVE-2017-12166",
"UBUNTU-CVE-2024-5594"
]
}
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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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