CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.4%
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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | cyrus-imapd | < any | UNKNOWN |
ubuntu | 20.04 | noarch | cyrus-imapd | < any | UNKNOWN |
ubuntu | 16.04 | noarch | cyrus-imapd-2.4 | < any | UNKNOWN |
github.com/cyrusimap/cyrus-imapd/commit/3411deb448d29f4d287e90272dfa70d6f067ca67
github.com/cyrusimap/cyrus-imapd/commit/768b3aa4f51b636f0c591b6b34dd96aab9ce0136
github.com/cyrusimap/cyrus-imapd/commit/810bb164a805395cd7a42412644f1d595e6b105e
github.com/cyrusimap/cyrus-imapd/commit/93901789300aeefbe5c5829f2ab938e567a796dd
github.com/cyrusimap/cyrus-imapd/commit/943d4c37a063d2cf3384a88df9b884a167c04468
launchpad.net/bugs/cve/CVE-2021-33582
nvd.nist.gov/vuln/detail/CVE-2021-33582
security-tracker.debian.org/tracker/CVE-2021-33582
www.cve.org/CVERecord?id=CVE-2021-33582
www.cyrusimap.org/imap/download/release-notes/3.0/x/3.0.16.html
www.cyrusimap.org/imap/download/release-notes/3.2/x/3.2.8.html
www.cyrusimap.org/imap/download/release-notes/3.2/x/3.2.8.html
www.cyrusimap.org/imap/download/release-notes/3.4/x/3.4.2.html
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
77.4%