ubuntu-cve-2023-23009
Vulnerability from osv_ubuntu
Published
2023-02-21 16:15
Modified
2026-05-20 15:02
Summary
Details
Libreswan 4.9 allows remote attackers to cause a denial of service (assert failure and daemon restart) via crafted TS payload with an incorrect selector length.
Severity
6.5 (Medium)
6.5 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "3.23-4"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@3.23-4?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.20-7build1",
"3.21-2",
"3.22-1",
"3.22-2",
"3.22-3",
"3.22-4",
"3.23-1",
"3.23-4"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "3.29-2build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@3.29-2build1?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.29-2",
"3.29-2build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "3.32-3ubuntu3"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@3.32-3ubuntu3?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"3.32-3ubuntu3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "4.14-1ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@4.14-1ubuntu2?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.11-1ubuntu1",
"4.12-1ubuntu1",
"4.14-1ubuntu1",
"4.14-1ubuntu2"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "5.2-2.2ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@5.2-2.2ubuntu1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"4.14-1ubuntu2",
"5.2-2.2ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "libreswan",
"binary_version": "5.2-2.2ubuntu2"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "libreswan",
"purl": "pkg:deb/ubuntu/libreswan@5.2-2.2ubuntu2?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"5.2-2.2ubuntu1",
"5.2-2.2ubuntu2"
]
}
],
"aliases": [],
"details": "Libreswan 4.9 allows remote attackers to cause a denial of service (assert failure and daemon restart) via crafted TS payload with an incorrect selector length.",
"id": "UBUNTU-CVE-2023-23009",
"modified": "2026-05-20T15:02:28Z",
"published": "2023-02-21T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2023-23009"
},
{
"type": "REPORT",
"url": "https://github.com/libreswan/libreswan/issues/954"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-23009"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2023-23009"
]
}
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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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