ubuntu-cve-2020-13529
Vulnerability from osv_ubuntu
Published
2021-05-10 16:15
Modified
2026-04-22 07:39
Summary
Details
An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.
Severity
6.1 (Medium)
6.1 (Medium)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "gir1.2-gudev-1.0",
"binary_version": "1:204-5ubuntu20.31+esm3"
},
{
"binary_name": "libgudev-1.0-0",
"binary_version": "1:204-5ubuntu20.31+esm3"
},
{
"binary_name": "libpam-systemd",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "libsystemd-daemon0",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "libsystemd-id128-0",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "libsystemd-journal0",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "libsystemd-login0",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "libudev1",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "python-systemd",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "systemd",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "systemd-services",
"binary_version": "204-5ubuntu20.31+esm3"
},
{
"binary_name": "udev",
"binary_version": "204-5ubuntu20.31+esm3"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@204-5ubuntu20.31+esm3?arch=source\u0026distro=esm-infra-legacy/trusty"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"204-0ubuntu18",
"204-0ubuntu19",
"204-5ubuntu3",
"204-5ubuntu5",
"204-5ubuntu6",
"204-5ubuntu7",
"204-5ubuntu8",
"204-5ubuntu9",
"204-5ubuntu10",
"204-5ubuntu11",
"204-5ubuntu13",
"204-5ubuntu14",
"204-5ubuntu15",
"204-5ubuntu16",
"204-5ubuntu17",
"204-5ubuntu18",
"204-5ubuntu19",
"204-5ubuntu20",
"204-5ubuntu20.2",
"204-5ubuntu20.3",
"204-5ubuntu20.4",
"204-5ubuntu20.5",
"204-5ubuntu20.6",
"204-5ubuntu20.7",
"204-5ubuntu20.8",
"204-5ubuntu20.9",
"204-5ubuntu20.10",
"204-5ubuntu20.11",
"204-5ubuntu20.12",
"204-5ubuntu20.13",
"204-5ubuntu20.14",
"204-5ubuntu20.15",
"204-5ubuntu20.18",
"204-5ubuntu20.19",
"204-5ubuntu20.20",
"204-5ubuntu20.21",
"204-5ubuntu20.22",
"204-5ubuntu20.24",
"204-5ubuntu20.25",
"204-5ubuntu20.26",
"204-5ubuntu20.28",
"204-5ubuntu20.29",
"204-5ubuntu20.31",
"204-5ubuntu20.31+esm2",
"204-5ubuntu20.31+esm3"
]
},
{
"ecosystem_specific": {
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "libnss-resolve",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "libpam-systemd",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "libsystemd0",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "libudev1",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "systemd",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "systemd-container",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "systemd-coredump",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "systemd-sysv",
"binary_version": "229-4ubuntu21.31+esm1"
},
{
"binary_name": "udev",
"binary_version": "229-4ubuntu21.31+esm1"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@229-4ubuntu21.31+esm1?arch=source\u0026distro=esm-infra/xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "229-4ubuntu21.31+esm1"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"225-1ubuntu9",
"227-2ubuntu1",
"227-2ubuntu2",
"228-1ubuntu2",
"228-2ubuntu1",
"228-2ubuntu2",
"228-3ubuntu1",
"228-4ubuntu1",
"228-4ubuntu2",
"228-5ubuntu1",
"228-5ubuntu2",
"228-5ubuntu3",
"228-6ubuntu1",
"229-1ubuntu2",
"229-1ubuntu4",
"229-2ubuntu1",
"229-3ubuntu1",
"229-3ubuntu2",
"229-4ubuntu1",
"229-4ubuntu4",
"229-4ubuntu5",
"229-4ubuntu6",
"229-4ubuntu7",
"229-4ubuntu8",
"229-4ubuntu10",
"229-4ubuntu11",
"229-4ubuntu12",
"229-4ubuntu13",
"229-4ubuntu16",
"229-4ubuntu17",
"229-4ubuntu19",
"229-4ubuntu20",
"229-4ubuntu21",
"229-4ubuntu21.1",
"229-4ubuntu21.2",
"229-4ubuntu21.3",
"229-4ubuntu21.4",
"229-4ubuntu21.5",
"229-4ubuntu21.6",
"229-4ubuntu21.8",
"229-4ubuntu21.9",
"229-4ubuntu21.10",
"229-4ubuntu21.15",
"229-4ubuntu21.16",
"229-4ubuntu21.17",
"229-4ubuntu21.19",
"229-4ubuntu21.21",
"229-4ubuntu21.22",
"229-4ubuntu21.23",
"229-4ubuntu21.27",
"229-4ubuntu21.28",
"229-4ubuntu21.29",
"229-4ubuntu21.31"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libnss-resolve",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libnss-systemd",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libpam-systemd",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libsystemd0",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "libudev1",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd-container",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd-coredump",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd-sysv",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "systemd-tests",
"binary_version": "237-3ubuntu10.49"
},
{
"binary_name": "udev",
"binary_version": "237-3ubuntu10.49"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@237-3ubuntu10.49?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "237-3ubuntu10.49"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"234-2ubuntu12",
"235-2ubuntu3",
"235-3ubuntu2",
"235-3ubuntu3",
"237-3ubuntu3",
"237-3ubuntu4",
"237-3ubuntu6",
"237-3ubuntu7",
"237-3ubuntu8",
"237-3ubuntu10",
"237-3ubuntu10.2",
"237-3ubuntu10.3",
"237-3ubuntu10.4",
"237-3ubuntu10.6",
"237-3ubuntu10.9",
"237-3ubuntu10.11",
"237-3ubuntu10.12",
"237-3ubuntu10.13",
"237-3ubuntu10.15",
"237-3ubuntu10.17",
"237-3ubuntu10.19",
"237-3ubuntu10.20",
"237-3ubuntu10.21",
"237-3ubuntu10.22",
"237-3ubuntu10.23",
"237-3ubuntu10.24",
"237-3ubuntu10.25",
"237-3ubuntu10.26",
"237-3ubuntu10.28",
"237-3ubuntu10.29",
"237-3ubuntu10.31",
"237-3ubuntu10.33",
"237-3ubuntu10.38",
"237-3ubuntu10.39",
"237-3ubuntu10.40",
"237-3ubuntu10.41",
"237-3ubuntu10.42",
"237-3ubuntu10.43",
"237-3ubuntu10.44",
"237-3ubuntu10.45",
"237-3ubuntu10.46",
"237-3ubuntu10.47",
"237-3ubuntu10.48"
]
},
{
"ecosystem_specific": {
"availability": "No subscription required",
"binaries": [
{
"binary_name": "libnss-myhostname",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libnss-mymachines",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libnss-resolve",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libnss-systemd",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libpam-systemd",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libsystemd0",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "libudev1",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-container",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-coredump",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-journal-remote",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-sysv",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-tests",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "systemd-timesyncd",
"binary_version": "245.4-4ubuntu3.10"
},
{
"binary_name": "udev",
"binary_version": "245.4-4ubuntu3.10"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "systemd",
"purl": "pkg:deb/ubuntu/systemd@245.4-4ubuntu3.10?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "245.4-4ubuntu3.10"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"242-7ubuntu3",
"243-2ubuntu1",
"243-3ubuntu1",
"244-3ubuntu1",
"244.1-0ubuntu2",
"244.1-0ubuntu3",
"244.2-1ubuntu1",
"244.3-1ubuntu1",
"245.2-1ubuntu1",
"245.2-1ubuntu2",
"245.4-2ubuntu1",
"245.4-4ubuntu1",
"245.4-4ubuntu3",
"245.4-4ubuntu3.1",
"245.4-4ubuntu3.2",
"245.4-4ubuntu3.3",
"245.4-4ubuntu3.4",
"245.4-4ubuntu3.5",
"245.4-4ubuntu3.6",
"245.4-4ubuntu3.7"
]
}
],
"aliases": [],
"details": "An exploitable denial-of-service vulnerability exists in Systemd 245. A specially crafted DHCP FORCERENEW packet can cause a server running the DHCP client to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHP ACK packets to reconfigure the server.",
"id": "UBUNTU-CVE-2020-13529",
"modified": "2026-04-22T07:39:25Z",
"published": "2021-05-10T16:15:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2020-13529"
},
{
"type": "REPORT",
"url": "https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5013-1"
},
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5013-2"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-13529"
}
],
"related": [
"USN-5013-1",
"USN-5013-2"
],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2020-13529"
]
}
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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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