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{"affected_release": [{"advisory": "RHSA-2021:3492", "cpe": "cpe:/a:redhat:enterprise_linux:8", "package": "cyrus-imapd-0:3.0.7-20.el8_4.1", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2021-09-13T00:00:00Z"}, {"advisory": "RHSA-2021:3546", "cpe": "cpe:/a:redhat:rhel_eus:8.1", "package": "cyrus-imapd-0:3.0.7-16.el8_1.1", "product_name": "Red Hat Enterprise Linux 8.1 Extended Update Support", "release_date": "2021-09-15T00:00:00Z"}, {"advisory": "RHSA-2021:3493", "cpe": "cpe:/a:redhat:rhel_eus:8.2", "package": "cyrus-imapd-0:3.0.7-16.el8_2.1", "product_name": "Red Hat Enterprise Linux 8.2 Extended Update Support", "release_date": "2021-09-13T00:00:00Z"}], "bugzilla": {"description": "cyrus-imapd: Denial of service via string hashing algorithm collisions", "id": "1993232", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1993232"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-400", "details": ["Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service (multiple-minute daemon hang) via input that is mishandled during hash-table interaction. Because there are many insertions into a single bucket, strcmp becomes slow. This is fixed in 3.4.2, 3.2.8, and 3.0.16.", "A flaw was found in cyrus-imapd. A bad string hashing algorithm used in internal hash tables allows user inputs to be stored in predictable buckets.  A user may cause a CPU denial of service by maliciously directing many inputs to a single bucket. The highest threat from this vulnerability is to system availability."], "name": "CVE-2021-33582", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "cyrus-imapd", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "cyrus-imapd", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "cyrus-imapd", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-09-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-33582\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-33582"], "threat_severity": "Important"}