Upstream information

CVE-2021-33582 at MITRE


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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Access Vector Network Network
Access Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1189313 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • cyradm >= 2.4.22-2.1
  • cyrus-imapd >= 2.4.22-2.1
  • cyrus-imapd-devel >= 2.4.22-2.1
  • cyrus-imapd-snmp >= 2.4.22-2.1
  • cyrus-imapd-snmp-mibs >= 2.4.22-2.1
  • cyrus-imapd-utils >= 2.4.22-2.1
  • perl-Cyrus-IMAP >= 2.4.22-2.1
  • perl-Cyrus-SIEVE-managesieve >= 2.4.22-2.1
openSUSE Tumbleweed GA cyradm-2.4.22-2.1

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Point of Service 11 SP3 cyrus-imapd In progress
SUSE Linux Enterprise Server 11 SP4 LTSS cyrus-imapd In progress