usn-5013-2
Vulnerability from osv_ubuntu
Published
2021-07-20 17:36
Modified
2026-06-25 10:46
Summary
systemd vulnerabilities
Details

USN-5013-1 fixed several vulnerabilities in systemd. This update provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that systemd incorrectly handled certain mount paths. A local attacker could possibly use this issue to cause systemd to crash, resulting in a denial of service. (CVE-2021-33910)

Mitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW packets. A remote attacker could possibly use this issue to reconfigure servers. (CVE-2020-13529)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-13529",
              "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"
                }
              ]
            },
            {
              "id": "CVE-2021-33910",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "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"
      ]
    }
  ],
  "aliases": [],
  "details": "USN-5013-1 fixed several vulnerabilities in systemd. This update provides\nthe corresponding update for Ubuntu 16.04 ESM.\n\n\nOriginal advisory details:\n\n It was discovered that systemd incorrectly handled certain mount paths. A\n local attacker could possibly use this issue to cause systemd to crash,\n resulting in a denial of service. (CVE-2021-33910)\n\n Mitchell Frank discovered that systemd incorrectly handled DHCP FORCERENEW\n packets. A remote attacker could possibly use this issue to reconfigure\n servers. (CVE-2020-13529)\n",
  "id": "USN-5013-2",
  "modified": "2026-06-25T10:46:01Z",
  "published": "2021-07-20T17:36:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-5013-2"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-13529"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-33910"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "systemd vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-13529",
    "UBUNTU-CVE-2021-33910"
  ]
}



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