Upstream information

CVE-2020-7957 at MITRE

Description

The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.

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
Base Score 5.3
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact Low
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1162773 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Server Applications 15 SP2
  • dovecot23 >= 2.3.10-15.1
  • dovecot23-backend-mysql >= 2.3.10-15.1
  • dovecot23-backend-pgsql >= 2.3.10-15.1
  • dovecot23-backend-sqlite >= 2.3.10-15.1
  • dovecot23-devel >= 2.3.10-15.1
  • dovecot23-fts >= 2.3.10-15.1
  • dovecot23-fts-lucene >= 2.3.10-15.1
  • dovecot23-fts-solr >= 2.3.10-15.1
  • dovecot23-fts-squat >= 2.3.10-15.1


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Please note that this evaluation state might be work in progress, incomplete or outdated.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 High Performance Computing 12 SP4 dovecot Not affected
SUSE Linux Enterprise High Performance Computing 12 SP5 dovecot Not affected
SUSE Linux Enterprise Module for Server Applications 15 dovecot Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 dovecot Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS dovecot Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS dovecot Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS dovecot Not affected
SUSE Linux Enterprise Server 12 SP4 dovecot Not affected
SUSE Linux Enterprise Server 12 SP5 dovecot Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 dovecot Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 dovecot Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 dovecot Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 dovecot Not affected