Vulnerability-Lookup

CVE-2020-13529 (GCVE-0-2020-13529)

Vulnerability from cvelistv5 – Published: 2021-05-10 15:08 – Updated: 2024-08-04 12:18

Summary

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)


                        
                          CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

CWE

CWE-290 - Authentication Bypass by Spoofing

Assigner

talos mitre root

References

7 references

URL	Tags
https://talosintelligence.com/vulnerability_repor…	x_refsource_MISC
https://security.gentoo.org/glsa/202107-48	vendor-advisoryx_refsource_GENTOO
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
http://www.openwall.com/lists/oss-security/2021/08/04/2	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/08/17/3	mailing-listx_refsource_MLIST
http://www.openwall.com/lists/oss-security/2021/09/07/3	mailing-listx_refsource_MLIST
https://security.netapp.com/advisory/ntap-2021062…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version	CPE status
n/a	Systemd	Affected: Canonical Ubuntu 20.04 LTS, Systemd 245

Show details on NVD website

JSON

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List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/17/3\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/07/3\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/\",\"source\":\"talos-cna@cisco.com\"},{\"url\":\"https://security.gentoo.org/glsa/202107-48\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210625-0005/\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142\",\"source\":\"talos-cna@cisco.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/04/2\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/08/17/3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"http://www.openwall.com/lists/oss-security/2021/09/07/3\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Mailing List\",\"Third Party Advisory\"]},{\"url\":\"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/42TMJVNYRY65B4QCJICBYOEIVZV3KUYI/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"},{\"url\":\"https://security.gentoo.org/glsa/202107-48\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://security.netapp.com/advisory/ntap-20210625-0005/\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]},{\"url\":\"https://talosintelligence.com/vulnerability_reports/TALOS-2020-1142\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Exploit\",\"Third Party Advisory\"]}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-03T02:07:57+00:00",
      "cve": "CVE-2020-13529",
      "id": "CVE-2020-13529",
      "initial_release_date": "2020-01-01T00:00:00+00:00",
      "product_status:fixed": "222",
      "product_status:known_affected": "29",
      "product_status:known_not_affected": "40",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "systemd: DHCP FORCERENEW authentication not implemented can cause a system running the DHCP client to have its network reconfigured",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-13529.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-02T02:31:03Z",
      "cve": "CVE-2020-13529",
      "id": "CVE-2020-13529",
      "initial_release_date": "2023-02-15T03:58:26Z",
      "product_status:known_affected": "323",
      "product_status:known_not_affected": "485",
      "product_status:recommended": "827",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2020-13529",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2020-13529.json",
      "version": "49"
    }
  }
}

OPENSUSE-SU-2024:11420-1

Vulnerability from csaf_opensuse - Published: 2024-06-15 00:00 - Updated: 2024-06-15 00:00

Summary

libsystemd0-249.4-2.2 on GA media

Severity

Moderate

Scope

19 vulnerabilities in this advisory, including CVE-2020-13529.

CVE-2020-13529

6.1 (Medium)


                
                  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Recommended: 108 products

Open the full advisory

RHSA-2021:4361

Vulnerability from csaf_redhat - Published: 2021-11-09 18:13 - Updated: 2026-07-03 02:10

Summary

Red Hat Security Advisory: NetworkManager security, bug fix, and enhancement update

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2020-13529.

CVE-2020-13529

An exploitable denial of service vulnerability exists in systemd which does not fully implement RFC3203, as it does not support authentication of FORCERENEW packets. A specially crafted DHCP FORCERENEW packet can cause a system, running the DHCP client, to be vulnerable to a DHCP ACK spoofing attack. An attacker can forge a pair of FORCERENEW and DCHPACK packets to reconfigure the system with arbitrary network settings.

6.1 (Medium)


                
                  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Fixed: 222 products

https://access.redhat.com/errata/RHSA-2021:4361

Open the full advisory

RHSA-2021_4361

Vulnerability from csaf_redhat - Published: 2021-11-09 18:13 - Updated: 2024-11-22 16:37

Summary

Red Hat Security Advisory: NetworkManager security, bug fix, and enhancement update

Severity

Moderate

Scope

1 vulnerability in this advisory, including CVE-2020-13529.

CVE-2020-13529

6.1 (Medium)


                
                  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Fixed: 342 products

https://access.redhat.com/errata/RHSA-2021:4361

Open the full advisory

SSA-398330

Vulnerability from csaf_siemens - Published: 2023-12-12 00:00 - Updated: 2025-08-12 00:00

Summary

SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5

Scope

544 vulnerabilities in this advisory, including CVE-2020-13529.

CVE-2020-13529

6.1 (Medium)


                
                  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C

Known affected: 5 products

https://support.industry.siemens.com/cs/ww/en/view/109478459/

Open the full advisory

SUSE-SU-2021:2809-1

Vulnerability from csaf_suse - Published: 2021-08-23 10:12 - Updated: 2021-08-23 10:12

Summary

Security update for systemd

Severity

Moderate

Scope

2 vulnerabilities in this advisory, including CVE-2020-13529.

CVE-2020-13529

6.1 (Medium)


                
                  CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

Recommended: 48 products

Open the full advisory

ubuntu-cve-2020-13529

Vulnerability from osv_ubuntu

Published

2021-05-10 16:15

Modified

2026-04-22 07:39

Summary

Details

Severity

6.1 (Medium)


                    
                      CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

6.1 (Medium)


                    
                      CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H

N/A (UNKNOWN)

low

References

URL

Type

	https://ubuntu.com/security/CVE-2020-13529	REPORT
	https://talosintelligence.com/vulnerability_repor…	REPORT
	https://ubuntu.com/security/notices/USN-5013-1	ADVISORY
	https://ubuntu.com/security/notices/USN-5013-2	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-13529	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "gir1.2-gudev-1.0",
            "binary_version": "1:204-5ubuntu20.31+esm3"
          },
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            "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": [
            {
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      "versions": [
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        "204-0ubuntu19",
        "204-5ubuntu3",
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        "204-5ubuntu9",
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        "204-5ubuntu11",
        "204-5ubuntu13",
        "204-5ubuntu14",
        "204-5ubuntu15",
        "204-5ubuntu16",
        "204-5ubuntu17",
        "204-5ubuntu18",
        "204-5ubuntu19",
        "204-5ubuntu20",
        "204-5ubuntu20.2",
        "204-5ubuntu20.3",
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        "204-5ubuntu20.5",
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        "204-5ubuntu20.18",
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        "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",
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          {
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            "binary_name": "libnss-resolve",
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          {
            "binary_name": "libpam-systemd",
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          {
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            "binary_name": "libudev1",
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            "binary_name": "systemd",
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            "binary_name": "systemd-container",
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          {
            "binary_name": "systemd-coredump",
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          },
          {
            "binary_name": "systemd-journal-remote",
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          {
            "binary_name": "systemd-sysv",
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          },
          {
            "binary_name": "udev",
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      },
      "package": {
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      "versions": [
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        "228-3ubuntu1",
        "228-4ubuntu1",
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        "229-1ubuntu2",
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        "229-3ubuntu1",
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        "229-4ubuntu1",
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        "229-4ubuntu5",
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        "229-4ubuntu7",
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        "229-4ubuntu10",
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        "229-4ubuntu12",
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        "229-4ubuntu16",
        "229-4ubuntu17",
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        "229-4ubuntu21.28",
        "229-4ubuntu21.29",
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    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
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          {
            "binary_name": "libnss-mymachines",
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          {
            "binary_name": "libnss-mymachines",
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          {
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            "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"
  ]
}

WID-SEC-W-2022-1660

Vulnerability from csaf_certbund - Published: 2021-04-26 22:00 - Updated: 2025-02-17 23:00

Summary

systemd: Schwachstelle ermöglicht Denial of Service

Severity

Mittel

Scope

1 vulnerability in this advisory, including CVE-2020-13529.

CVE-2020-13529

Known affected: 9 products

Open the full advisory

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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2020-13529 (GCVE-0-2020-13529)

OPENSUSE-SU-2024:11420-1

RHSA-2021:4361

RHSA-2021_4361

SSA-398330

SUSE-SU-2021:2809-1

ubuntu-cve-2020-13529

Vulnerability from osv_ubuntu

WID-SEC-W-2022-1660

Tags

Sightings

Nomenclature

Related by attack behaviour