Upstream information

CVE-2017-2669 at MITRE

Description

Dovecot before version 2.2.29 is vulnerable to a denial of service. When 'dict' passdb and userdb were used for user authentication, the username sent by the IMAP/POP3 client was sent through var_expand() to perform %variable expansion. Sending specially crafted %variable fields could result in excessive memory usage causing the process to crash (and restart), or excessive CPU usage causing all authentications to hang.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database SUSE
Base Score 5 5.4
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P AV:N/AC:H/Au:N/C:N/I:N/A:C
Access Vector Network Network
Access Complexity Low High
Authentication None None
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Partial Complete
CVSS v3 Scores
  National Vulnerability Database
Base Score 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3
SUSE Bugzilla entry: 1032248 [RESOLVED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise High Performance Computing 12 SP5
SUSE Linux Enterprise Server 12 SP5
  • dovecot22 >= 2.2.31-19.17.1
  • dovecot22-backend-mysql >= 2.2.31-19.17.1
  • dovecot22-backend-pgsql >= 2.2.31-19.17.1
  • dovecot22-backend-sqlite >= 2.2.31-19.17.1
SUSE Linux Enterprise Server 12 SP1
SUSE Linux Enterprise Server for SAP Applications 12 SP1
  • dovecot >= 2.2-3.1
  • dovecot22 >= 2.2.29.1-11.1
  • dovecot22-backend-mysql >= 2.2.29.1-11.1
  • dovecot22-backend-pgsql >= 2.2.29.1-11.1
  • dovecot22-backend-sqlite >= 2.2.29.1-11.1
Patchnames:
SUSE-SLE-SERVER-12-SP1-2017-747
SUSE Linux Enterprise Server 12 SP2
SUSE Linux Enterprise Server for SAP Applications 12 SP2
  • dovecot >= 2.2-3.1
  • dovecot22 >= 2.2.29.1-11.1
  • dovecot22-backend-mysql >= 2.2.29.1-11.1
  • dovecot22-backend-pgsql >= 2.2.29.1-11.1
  • dovecot22-backend-sqlite >= 2.2.29.1-11.1
Patchnames:
SUSE-SLE-SERVER-12-SP2-2017-747
SUSE Linux Enterprise Server 12 SP3
  • dovecot22 >= 2.2.30.2-14.2
  • dovecot22-backend-mysql >= 2.2.30.2-14.2
  • dovecot22-backend-pgsql >= 2.2.30.2-14.2
  • dovecot22-backend-sqlite >= 2.2.30.2-14.2
SUSE Linux Enterprise Server 12 SP4
  • dovecot22 >= 2.2.31-19.11.1
  • dovecot22-backend-mysql >= 2.2.31-19.11.1
  • dovecot22-backend-pgsql >= 2.2.31-19.11.1
  • dovecot22-backend-sqlite >= 2.2.31-19.11.1
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2
  • dovecot >= 2.2-3.1
  • dovecot22 >= 2.2.29.1-11.1
  • dovecot22-backend-mysql >= 2.2.29.1-11.1
  • dovecot22-backend-pgsql >= 2.2.29.1-11.1
  • dovecot22-backend-sqlite >= 2.2.29.1-11.1
Patchnames:
SUSE-SLE-RPI-12-SP2-2017-747
SUSE Linux Enterprise Software Development Kit 12 SP1
  • dovecot22 >= 2.2.29.1-11.1
  • dovecot22-devel >= 2.2.29.1-11.1
Patchnames:
SUSE-SLE-SDK-12-SP1-2017-747
SUSE Linux Enterprise Software Development Kit 12 SP2
  • dovecot22 >= 2.2.29.1-11.1
  • dovecot22-devel >= 2.2.29.1-11.1
Patchnames:
SUSE-SLE-SDK-12-SP2-2017-747
SUSE Linux Enterprise Software Development Kit 12 SP3
  • dovecot22-devel >= 2.2.30.2-14.2
SUSE Linux Enterprise Software Development Kit 12 SP4
  • dovecot22-devel >= 2.2.31-19.11.1
SUSE Linux Enterprise Software Development Kit 12 SP5
  • dovecot22-devel >= 2.2.31-19.17.1
openSUSE Leap 42.2
  • dovecot22 >= 2.2.30.2-5.4.1
  • dovecot22-backend-mysql >= 2.2.30.2-5.4.1
  • dovecot22-backend-mysql-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-backend-pgsql >= 2.2.30.2-5.4.1
  • dovecot22-backend-pgsql-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-backend-sqlite >= 2.2.30.2-5.4.1
  • dovecot22-backend-sqlite-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-debugsource >= 2.2.30.2-5.4.1
  • dovecot22-devel >= 2.2.30.2-5.4.1
  • dovecot22-fts >= 2.2.30.2-5.4.1
  • dovecot22-fts-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-fts-lucene >= 2.2.30.2-5.4.1
  • dovecot22-fts-lucene-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-fts-solr >= 2.2.30.2-5.4.1
  • dovecot22-fts-solr-debuginfo >= 2.2.30.2-5.4.1
  • dovecot22-fts-squat >= 2.2.30.2-5.4.1
  • dovecot22-fts-squat-debuginfo >= 2.2.30.2-5.4.1
Patchnames:
openSUSE-2017-787


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 High Performance Computing 12 SP5 dovecot Released
SUSE Linux Enterprise High Performance Computing 12 SP5 dovecot22 Released
SUSE Linux Enterprise Server 12 LTSS dovecot22 Affected
SUSE Linux Enterprise Server 12 SP1 dovecot22 Released
SUSE Linux Enterprise Server 12 SP2 dovecot22 Released
SUSE Linux Enterprise Server 12 SP5 dovecot Released
SUSE Linux Enterprise Server 12 SP5 dovecot22 Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 dovecot Released
SUSE Linux Enterprise Server for SAP Applications 12 SP5 dovecot22 Released
SUSE Linux Enterprise Server for the Raspberry Pi dovecot22 Released
SUSE Linux Enterprise Software Development Kit 12 dovecot22 Released
SUSE Linux Enterprise Software Development Kit 12 SP1 dovecot22 Released