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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
---
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CVEADP
---
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Base Score
CVSS 3.x
EPSS Score
Percentile: 75%
VendorProductVersion
cyrusimap
𝑥
< 3.0.16
cyrusimap
3.2.0 ≤
𝑥
< 3.2.8
cyrusimap
3.4.0 ≤
𝑥
< 3.4.2
debiandebian_linux
9.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
cyrus-imapd
bullseye
3.2.6-2+deb11u2
fixed
bookworm
3.6.1-4+deb12u3
fixed
bookworm (security)
3.6.1-4+deb12u2
fixed
sid
3.10.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
cyrus-imapd
noble
not-affected
mantic
not-affected
jammy
not-affected
focal
needed
bionic
needed
xenial
ignored
trusty
dne
cyrus-imapd-2.4
noble
dne
mantic
dne
jammy
dne
focal
dne
bionic
dne
xenial
needed
trusty
dne
Common Weakness Enumeration
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://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/
https://www.cyrusimap.org/imap/download/release-notes/index.html
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://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/
https://www.cyrusimap.org/imap/download/release-notes/index.html