CVE-2021-33582
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-33582
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-33582.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-33582
- Downstream
- Related
- Published
- 2021-09-01T06:15:06Z
- Modified
- 2025-10-15T13:04:52.371563Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- 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.
- References
-
- https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e072f8df13/cyrus-imap-3-4-2-3-2-8-and-3-0-16-released
- https://github.com/cyrusimap/cyrus-imapd/commits/master
- https://github.com/cyrusimap/cyrus-imapd/security/advisories
- https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html
- https://www.cyrusimap.org/imap/download/release-notes/index.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/
Affected packages
Git / github.com/cyrusimap/cyrus-imapd
Affected ranges
- Type
- GIT
- Repo
- https://github.com/cyrusimap/cyrus-imapd
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
cyrus-imapd-2.*
cyrus-imapd-2.4.0
cyrus-imapd-2.4.1
cyrus-imapd-2.4.2
cyrus-imapd-2.5-snapshot-autoconf-and-automake
cyrus-imapd-3.*
cyrus-imapd-3.0.0
cyrus-imapd-3.0.0-beta1
cyrus-imapd-3.0.0-beta2
cyrus-imapd-3.0.0-beta3
cyrus-imapd-3.0.0-beta4
cyrus-imapd-3.0.0-beta5
cyrus-imapd-3.0.0-beta6
cyrus-imapd-3.0.0-rc1
cyrus-imapd-3.0.0-rc2
cyrus-imapd-3.0.0-rc3
cyrus-imapd-3.0.0-rc4
cyrus-imapd-3.0.1
cyrus-imapd-3.0.10
cyrus-imapd-3.0.11
cyrus-imapd-3.0.12
cyrus-imapd-3.0.13
cyrus-imapd-3.0.14
cyrus-imapd-3.0.15
cyrus-imapd-3.0.2
cyrus-imapd-3.0.3
cyrus-imapd-3.0.4
cyrus-imapd-3.0.5
cyrus-imapd-3.0.6
cyrus-imapd-3.0.7
cyrus-imapd-3.0.8
cyrus-imapd-3.0.9
Other
posttab
pretab