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{"bugzilla": {"description": "zeromq: Memory leaks via metadata messages processed by PUB sockets", "id": "1921989", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1921989"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-400", "details": ["An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp in versions before 4.3.3. This flaw allows a remote unauthenticated attacker to send crafted PUB messages that consume excessive memory if the CURVE/ZAP authentication is disabled on the server, causing a denial of service. The highest threat from this vulnerability is to system availability.", "An uncontrolled resource consumption (memory leak) flaw was found in ZeroMQ's src/xpub.cpp. This flaw allows a remote unauthenticated attacker to send crafted PUB messages that consume excessive memory if the CURVE/ZAP authentication is disabled on the server, causing a denial of service. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-20237", "package_state": [{"cpe": "cpe:/a:redhat:ceph_storage:2", "fix_state": "Out of support scope", "package_name": "zeromq3", "product_name": "Red Hat Ceph Storage 2"}], "public_date": "2020-09-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-20237\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-20237\nhttps://github.com/zeromq/libzmq/security/advisories/GHSA-4p5v-h92w-6wxw"], "threat_severity": "Low", "upstream_fix": "zeromq 4.3.3"}