Test ID:	1.3.6.1.4.1.25623.1.0.146616
Category:	Denial of Service
Title:	Cyrus IMAP < 3.0.16, 3.2.x < 3.2.8, 3.4.x < 3.4.2 DoS Vulnerability
Summary:	Cyrus IMAP is prone to a denial of service (DoS) vulnerability.
Description:	Summary: Cyrus IMAP is prone to a denial of service (DoS) vulnerability. Vulnerability Insight: Certain user inputs are used as hash table keys during processing. A poorly chosen string hashing algorithm meant that the user could control which bucket their data was stored in, allowing a malicious user to direct many inputs to a single bucket. Each subsequent insertion to the same bucket requires a strcmp of every other entry in it. At tens of thousands of entries, each new insertion could keep the CPU busy in a strcmp loop for minutes. Affected Software/OS: Cyrus IMAP prior to version 3.0.16, version 3.2.x through 3.2.7 and 3.4.x through 3.4.1. Solution: Update to version 3.0.16, 3.2.8, 3.4.2 or later. CVSS Score: 5.0 CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2021-33582 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM/ https://github.com/cyrusimap/cyrus-imapd/commits/master https://github.com/cyrusimap/cyrus-imapd/security/advisories https://www.cyrusimap.org/imap/download/release-notes/index.html https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html
Copyright	Copyright (C) 2021 Greenbone Networks GmbH

This is only one of 145615 vulnerability tests in our test suite. Find out more about running a complete security audit. To run a free test of this vulnerability against your system, register below.