{"id":"USN-4920-1","summary":"zeromq3 vulnerabilities","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","modified":"2026-02-10T04:42:09Z","published":"2022-06-15T18:16:23Z","related":["UBUNTU-CVE-2019-13132","UBUNTU-CVE-2020-15166","UBUNTU-CVE-2021-20234","UBUNTU-CVE-2021-20235","UBUNTU-CVE-2021-20237"],"upstream":["CVE-2019-13132","CVE-2020-15166","CVE-2021-20234","CVE-2021-20235","CVE-2021-20237","UBUNTU-CVE-2019-13132","UBUNTU-CVE-2020-15166","UBUNTU-CVE-2021-20234","UBUNTU-CVE-2021-20235","UBUNTU-CVE-2021-20237"],"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"}],"affected":[{"package":{"name":"zeromq3","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/zeromq3@4.0.4+dfsg-2ubuntu0.1+esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.4+dfsg-2ubuntu0.1+esm3"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"4.0.4+dfsg-2ubuntu0.1+esm3","binary_name":"libzmq3"},{"binary_version":"4.0.4+dfsg-2ubuntu0.1+esm3","binary_name":"libzmq3-dev"}],"availability":"Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"},"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"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4920-1.json"}},{"package":{"name":"zeromq3","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/zeromq3@4.1.4-7ubuntu0.1+esm2?arch=source&distro=esm-apps/xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.1.4-7ubuntu0.1+esm2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"4.1.4-7ubuntu0.1+esm2","binary_name":"libzmq3-dev"},{"binary_version":"4.1.4-7ubuntu0.1+esm2","binary_name":"libzmq5"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"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"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4920-1.json"}},{"package":{"name":"zeromq3","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/zeromq3@4.2.5-1ubuntu0.2+esm2?arch=source&distro=esm-apps/bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.5-1ubuntu0.2+esm2"}]}],"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"],"ecosystem_specific":{"binaries":[{"binary_version":"4.2.5-1ubuntu0.2+esm2","binary_name":"libzmq3-dev"},{"binary_version":"4.2.5-1ubuntu0.2+esm2","binary_name":"libzmq5"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"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"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4920-1.json"}},{"package":{"name":"zeromq3","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/zeromq3@4.3.2-2ubuntu1.20.04.1~esm2?arch=source&distro=esm-apps/focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.3.2-2ubuntu1.20.04.1~esm2"}]}],"versions":["4.3.2-1","4.3.2-2","4.3.2-2ubuntu1","4.3.2-2ubuntu1.20.04.1~esm1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.3.2-2ubuntu1.20.04.1~esm2","binary_name":"libzmq3-dev"},{"binary_version":"4.3.2-2ubuntu1.20.04.1~esm2","binary_name":"libzmq5"}],"availability":"Available with Ubuntu Pro: https://ubuntu.com/pro"},"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"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4920-1.json"}}],"schema_version":"1.7.3"}