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Mageia 8: 2022-0247 Critical: cyrus-imapd Denial Of Service Issue

mageia
Calendar Grey July 5, 2022
Dist Mageia Esm H88
Cyrus IMAP patch addresses a critical security flaw enabling remote Denial of Service attacks, effective August 2022.
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

Summary

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. (CVE-2021-33582)

References

- https://bugs.mageia.org/show_bug.cgi?id=30079

- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/WJZB45QBUN7CZFGOWCZYUYACNBTX7LVS/

- https://lists.debian.org/debian-lts-announce/2022/06/msg00013.html

- https://www.cve.org/CVERecord?id=CVE-2021-33582

Topics%20covered

Topics Covered

security advisory denial of service security issue critical cyrus-imapd Mageia

Resolution

SRPMS

- 8/core/cyrus-imapd-2.5.15-3.1.mga8

Severity
critical
Lowest
Low
Medium
High
Critical

Publication date: 05 Jul 2022
URL: https://advisories.mageia.org/MGASA-2022-0247.html
Type: security
CVE: CVE-2021-33582

Topics%20covered

Topics Covered

security advisory denial of service security issue critical cyrus-imapd Mageia

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