usn-4920-1
Vulnerability from osv_ubuntu
Published
2022-06-15 18:16
Modified
2026-06-29 10:52
Summary
zeromq3 vulnerabilities
Details

It was discovered that ZeroMQ incorrectly handled certain application metadata. A remote attacker could use this issue to cause ZeroMQ to crash, or possibly execute arbitrary code. (CVE-2019-13132)

It was discovered that ZeroMQ mishandled certain network traffic. An unauthenticated attacker could use this vulnerability to cause a denial-of- service and prevent legitimate clients from communicating with ZeroMQ. (CVE-2020-15166)

It was discovered that ZeroMQ did not properly manage memory under certain circumstances. If a user or automated system were tricked into connecting to one or multiple compromised servers, a remote attacker could use this issue to cause a denial of service. (CVE-2021-20234)

It was discovered that ZeroMQ incorrectly handled memory when processing messages with arbitrarily large sizes under certain circumstances. A remote unauthenticated attacker could use this issue to cause a ZeroMQ server to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-20235)

It was discovered that ZeroMQ did not properly manage memory under certain circumstances. A remote unauthenticated attacker could use this issue to cause a ZeroMQ server to crash, resulting in a denial of service. This issue only affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-20237)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-20234",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:14.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libzmq3",
            "binary_version": "4.0.4+dfsg-2ubuntu0.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "zeromq3",
        "purl": "pkg:deb/ubuntu/zeromq3@4.0.4+dfsg-2ubuntu0.1+esm3?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.0.4+dfsg-2ubuntu0.1+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.2.3+dfsg-2",
        "3.2.4+dfsg-1",
        "3.2.4+dfsg-2",
        "3.2.4+dfsg-3",
        "3.2.4+dfsg-4",
        "4.0.3+dfsg-1",
        "4.0.4+dfsg-2",
        "4.0.4+dfsg-2ubuntu0.1",
        "4.0.4+dfsg-2ubuntu0.1+esm1",
        "4.0.4+dfsg-2ubuntu0.1+esm2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-20234",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libzmq5",
            "binary_version": "4.1.4-7ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "zeromq3",
        "purl": "pkg:deb/ubuntu/zeromq3@4.1.4-7ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.4-7ubuntu0.1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.0.5+dfsg-3ubuntu1~gcc5.1",
        "4.0.5+dfsg-3ubuntu2",
        "4.1.4-7",
        "4.1.4-7ubuntu0.1",
        "4.1.4-7ubuntu0.1+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-20234",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20235",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20237",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libzmq5",
            "binary_version": "4.2.5-1ubuntu0.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "zeromq3",
        "purl": "pkg:deb/ubuntu/zeromq3@4.2.5-1ubuntu0.2+esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.2.5-1ubuntu0.2+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.2.1-4ubuntu1",
        "4.2.2-1ubuntu2",
        "4.2.3-1",
        "4.2.3-1build1",
        "4.2.5-1",
        "4.2.5-1ubuntu0.1",
        "4.2.5-1ubuntu0.2",
        "4.2.5-1ubuntu0.2+esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2021-20234",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20235",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2021-20237",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libzmq5",
            "binary_version": "4.3.2-2ubuntu1.20.04.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "zeromq3",
        "purl": "pkg:deb/ubuntu/zeromq3@4.3.2-2ubuntu1.20.04.1~esm2?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.3.2-2ubuntu1.20.04.1~esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.2-1",
        "4.3.2-2",
        "4.3.2-2ubuntu1",
        "4.3.2-2ubuntu1.20.04.1~esm1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that ZeroMQ incorrectly handled certain application\nmetadata. A remote attacker could use this issue to cause ZeroMQ to crash,\nor possibly execute arbitrary code. (CVE-2019-13132)\n\nIt was discovered that ZeroMQ mishandled certain network traffic. An\nunauthenticated attacker could use this vulnerability to cause a denial-of-\nservice and prevent legitimate clients from communicating with ZeroMQ.\n(CVE-2020-15166)\n\nIt was discovered that ZeroMQ did not properly manage memory under certain\ncircumstances. If a user or automated system were tricked into connecting\nto one or multiple compromised servers, a remote attacker could use this\nissue to cause a denial of service. (CVE-2021-20234)\n\nIt was discovered that ZeroMQ incorrectly handled memory when processing\nmessages with arbitrarily large sizes under certain circumstances. A remote\nunauthenticated attacker could use this issue to cause a ZeroMQ server to crash,\nresulting in a denial of service, or possibly execute arbitrary code. This issue\nonly affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-20235)\n\nIt was discovered that ZeroMQ did not properly manage memory under certain\ncircumstances. A remote unauthenticated attacker could use this issue to\ncause a ZeroMQ server to crash, resulting in a denial of service. This issue\nonly affected Ubuntu 18.04 ESM and Ubuntu 20.04 ESM. (CVE-2021-20237)\n",
  "id": "USN-4920-1",
  "modified": "2026-06-29T10:52:49Z",
  "published": "2022-06-15T18:16:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4920-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-13132"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-15166"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20234"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20235"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2021-20237"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "zeromq3 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-13132",
    "UBUNTU-CVE-2020-15166",
    "UBUNTU-CVE-2021-20234",
    "UBUNTU-CVE-2021-20235",
    "UBUNTU-CVE-2021-20237"
  ]
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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