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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade cyrus-imapdUpgrade cyrus-imapd-utilsUpgrade cyrus-imapd-vzic | May 4, 2022 | Sep 1, 2021 |
| Amazon Linux Ami 2 | — | Upgrade cyrus-imapd-utilsUpgrade cyrus-imapd-develUpgrade cyrus-imapd-debuginfoUpgrade cyrus-imapd | Jul 4, 2022 | Sep 1, 2021 |
| Amazon_linux | — | Upgrade cyrus-imapd | Jan 20, 2022 | Sep 1, 2021 |
| Centos_linux | — | Upgrade cyrus-imapd-utils-debuginfoUpgrade cyrus-imapd-utilsUpgrade cyrus-imapdUpgrade cyrus-imapd-vzic-debuginfoUpgrade cyrus-imapd-debugsourceUpgrade cyrus-imapd-debuginfoUpgrade cyrus-imapd-vzic | Sep 14, 2021 | Sep 1, 2021 |
| Debian | — | Upgrade cyrus-imapd | Jun 21, 2022 | Sep 1, 2021 |
| Freebsd | — | Upgrade cyrus-imapd25Upgrade cyrus-imapd30Upgrade cyrus-imapd32Upgrade cyrus-imapd24Upgrade cyrus-imapd23Upgrade cyrus-imapd34 | Nov 4, 2022 | Sep 1, 2021 |
| Oracle_linux | — | Upgrade cyrus-imapd-utilsUpgrade cyrus-imapd-vzicUpgrade cyrus-imapd | Sep 14, 2021 | Sep 1, 2021 |
| Redhat_linux | — | Upgrade cyrus-imapd-utils-debuginfoNo solution existsUpgrade cyrus-imapd-utilsUpgrade cyrus-imapd-debuginfoUpgrade cyrus-imapd-vzicUpgrade cyrus-imapdUpgrade cyrus-imapd-debugsourceUpgrade cyrus-imapd-vzic-debuginfo | Sep 14, 2021 | Sep 1, 2021 |
| Rocky_linux | — | Upgrade cyrus-imapd-debuginfoUpgrade cyrus-imapdUpgrade cyrus-imapd-vzic-debuginfoUpgrade cyrus-imapd-utilsUpgrade cyrus-imapd-debugsourceUpgrade cyrus-imapd-utils-debuginfoUpgrade cyrus-imapd-vzic | May 5, 2022 | Sep 1, 2021 |
| Ubuntu | — | Upgrade cyrus-dev (Ubuntu Pro)Upgrade cyrus-caldav (Ubuntu Pro)Upgrade cyrus-replication (Ubuntu Pro)Upgrade cyrus-nntpd (Ubuntu Pro)Upgrade cyrus-imapd (Ubuntu Pro)Upgrade libcyrus-imap-perl (Ubuntu Pro)Upgrade cyrus-common (Ubuntu Pro)Upgrade cyrus-murder (Ubuntu Pro)Upgrade cyrus-pop3d (Ubuntu Pro)Upgrade cyrus-admin (Ubuntu Pro)Upgrade cyrus-clients (Ubuntu Pro) | Jan 24, 2025 | Sep 1, 2021 |
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