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MitreCVE-2021-33582

HistorySep 01, 2021 - 6:15 a.m.

CVE-2021-33582

2021-09-0106:15:06

CWE-407

mitre

web.nvd.nist.gov

103

cyrus imap

cve-2021-33582

denial of service

nvd

3.4.2

3.2.8

3.0.16

security vulnerability

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

7.5

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

AI Score

7.1

Confidence

High

EPSS

0.005

Percentile

77.4%

JSON

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.

Affected configurations

Nvd

Node

cyrusimapRange<3.0.16

cyrusimapRange3.2.0–3.2.8

cyrusimapRange3.4.0–3.4.2

Node

fedoraprojectfedoraMatch34

fedoraprojectfedoraMatch35

Node

debiandebian_linuxMatch9.0

VendorProductVersionCPE
cyrusimap*cpe:2.3:a:cyrus:imap:*:*:*:*:*:*:*:*
fedoraprojectfedora34cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
fedoraprojectfedora35cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
debiandebian_linux9.0cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cyrus	imap	*	cpe:2.3:a:cyrus:imap::::::::
fedoraproject	fedora	34	cpe:2.3:o:fedoraproject:fedora:34:::::::*
fedoraproject	fedora	35	cpe:2.3:o:fedoraproject:fedora:35:::::::*
debian	debian_linux	9.0	cpe:2.3:o:debian:debian_linux:9.0:::::::*