#VU59879 Input validation error in Cyrus IMAP Server - CVE-2021-33582 

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Main Vulnerability Database Vulnerabilities #VU59879

#VU59879 Input validation error in Cyrus IMAP Server - CVE-2021-33582

Published: January 20, 2022


Vulnerability identifier: #VU59879
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-33582
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Cyrus IMAP Server
Software vendor:
Carnegie Mellon University

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input that is mishandled during hash-table interaction. A remote attacker can 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.


Remediation

Install update from vendor's website.

External links