Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cyrus | Imap | < 3.0.16 |
| Fedoraproject | Fedora | 34 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e072PatchVendor Advisory
- https://github.com/cyrusimap/cyrus-imapd/commits/masterPatchThird Party Advisory
- https://github.com/cyrusimap/cyrus-imapd/security/advisoriesNot ApplicableThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/06/msg00013.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.cyrusimap.org/imap/download/release-notes/index.htmlPatchRelease NotesVendor Advisory
- https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e072PatchVendor Advisory
- https://github.com/cyrusimap/cyrus-imapd/commits/masterPatchThird Party Advisory
- https://github.com/cyrusimap/cyrus-imapd/security/advisoriesNot ApplicableThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/06/msg00013.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.cyrusimap.org/imap/download/release-notes/index.htmlPatchRelease NotesVendor Advisory
FAQ
What is CVE-2021-33582?
CVE-2021-33582 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2021-33582?
CVE-2021-33582 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-33582?
Check the references section above for vendor advisories and patch information. Affected products include: Cyrus Imap, Fedoraproject Fedora, Debian Debian Linux.