Is CVE-2021-33582 actively exploited?

CVE-2021-33582 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-33582?

CVE-2021-33582 has a CVSS score of 7.5 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2021-33582?

Patch guidance is available from cyrus security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-33582.

Fix CVE-2021-33582 - HIGH cyrus imap

Q: Which products are affected by CVE-2021-33582?

6 products: cyrus imap, cyrus imap, cyrus imap, fedoraproject fedora, fedoraproject fedora, and 1 more.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-407

Metadata

Primary Vendor: CYRUS
Published: 9/1/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

cyrus : imapcyrus : imapcyrus : imapfedoraproject : fedorafedoraproject : fedoradebian : debian_linux

Remediation Guidance

Executive Summary

View on NIST NVD