Vulnerability Monitor

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CVE-2021-33582

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.

Published

2021-09-01T06:15:06.387

Last Modified

2024-11-21T06:09:08.403

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-407

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	cyrus	imap	< 3.0.16	Yes
Application	cyrus	imap	< 3.2.8	Yes
Application	cyrus	imap	< 3.4.2	Yes
Operating System	fedoraproject	fedora	34	Yes
Operating System	fedoraproject	fedora	35	Yes
Operating System	debian	debian_linux	9.0	Yes

References

https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e072f8df13/cyrus-imap-3-4-2-3-2-8-and-3-0-16-released Patch, Vendor Advisory ([email protected])
https://github.com/cyrusimap/cyrus-imapd/commits/master Patch, Third Party Advisory ([email protected])
https://github.com/cyrusimap/cyrus-imapd/security/advisories Not Applicable, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html Mailing List, Third Party Advisory ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM/ ([email protected])
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/ ([email protected])
https://www.cyrusimap.org/imap/download/release-notes/index.html Patch, Release Notes, Vendor Advisory ([email protected])
https://cyrus.topicbox.com/groups/announce/T3dde0a2352462975-M1386fc44adf967e072f8df13/cyrus-imap-3-4-2-3-2-8-and-3-0-16-released Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/cyrusimap/cyrus-imapd/commits/master Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/cyrusimap/cyrus-imapd/security/advisories Not Applicable, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6HEO3RURJW6NLIXS7NK5PVU6MGHC4SCM/ (af854a3a-2127-422b-91ae-364da2661108)
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/ (af854a3a-2127-422b-91ae-364da2661108)
https://www.cyrusimap.org/imap/download/release-notes/index.html Patch, Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)