Upstream information

CVE-2020-12063 at MITRE

Description

** DISPUTED ** A certain Postfix 2.10.1-7 package could allow an attacker to send an email from an arbitrary-looking sender via a homoglyph attack, as demonstrated by the similarity of \xce\xbf to the 'o' character. This is potentially relevant when the /etc/postfix/sender_login feature is used, because a spoofed outbound message that uses a configured sender address is blocked with a "Sender address rejected: not logged in" error message, but a spoofed outbound message that uses a homoglyph of a configured sender address is not blocked. NOTE: some third parties argue that any missed blocking of spoofed outbound messages - except for exact matches to a sender address in the /etc/postfix/sender_login file - is outside the design goals of Postfix and thus cannot be considered a Postfix vulnerability.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
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:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact Low
Availability Impact None
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1173208 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise High Performance Computing 12 SP5 postfix Not affected
SUSE Linux Enterprise Server 12 SP5 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP5 postfix Not affected
SUSE Linux Enterprise Software Development Kit 12 SP5 postfix Not affected
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 postfix Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1 postfix Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-ESPOS postfix Not affected
SUSE Linux Enterprise High Performance Computing 15 SP1-LTSS postfix Not affected
SUSE Linux Enterprise High Performance Computing 15-ESPOS postfix Not affected
SUSE Linux Enterprise High Performance Computing 15-LTSS postfix Not affected
SUSE Linux Enterprise Server 12 SP2-BCL postfix Not affected
SUSE Linux Enterprise Server 15-ESPOS postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 15 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 15 SP1 postfix Not affected
Products past their end of life and not receiving proactive updates anymore.
HPE Helion OpenStack 8 postfix Not affected
SUSE CaaS Platform 4.0 postfix Not affected
SUSE Enterprise Storage 6 postfix Not affected
SUSE Linux Enterprise Desktop 11 SP4 postfix Not affected
SUSE Linux Enterprise Desktop 12 SP2 postfix Not affected
SUSE Linux Enterprise Desktop 12 SP3 postfix Not affected
SUSE Linux Enterprise Desktop 12 SP4 postfix Not affected
SUSE Linux Enterprise Desktop 15 postfix Not affected
SUSE Linux Enterprise Desktop 15 SP1 postfix Not affected
SUSE Linux Enterprise High Performance Computing 12 SP4 postfix Not affected
SUSE Linux Enterprise Module for Basesystem 15 postfix Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 postfix Not affected
SUSE Linux Enterprise Module for Server Applications 15 postfix Not affected
SUSE Linux Enterprise Module for Server Applications 15 SP1 postfix Not affected
SUSE Linux Enterprise Server 11 SP3 postfix Not affected
SUSE Linux Enterprise Server 11 SP3-LTSS postfix Not affected
SUSE Linux Enterprise Server 11 SP4 postfix Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS postfix Not affected
SUSE Linux Enterprise Server 11 SP4-LTSS postfix Not affected
SUSE Linux Enterprise Server 12 SP2 postfix Not affected
SUSE Linux Enterprise Server 12 SP2-ESPOS postfix Not affected
SUSE Linux Enterprise Server 12 SP2-LTSS postfix Not affected
SUSE Linux Enterprise Server 12 SP3 postfix Not affected
SUSE Linux Enterprise Server 12 SP3-BCL postfix Not affected
SUSE Linux Enterprise Server 12 SP3-ESPOS postfix Not affected
SUSE Linux Enterprise Server 12 SP3-LTSS postfix Not affected
SUSE Linux Enterprise Server 12 SP4 postfix Not affected
SUSE Linux Enterprise Server 12 SP4-ESPOS postfix Not affected
SUSE Linux Enterprise Server 12 SP4-LTSS postfix Not affected
SUSE Linux Enterprise Server 15 postfix Not affected
SUSE Linux Enterprise Server 15 SP1 postfix Not affected
SUSE Linux Enterprise Server 15 SP1-BCL postfix Not affected
SUSE Linux Enterprise Server 15 SP1-LTSS postfix Not affected
SUSE Linux Enterprise Server 15-LTSS postfix Not affected
SUSE Linux Enterprise Server for Raspberry Pi 12 SP2 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 11 SP4 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 postfix Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 postfix Not affected
SUSE Linux Enterprise Software Development Kit 11 SP4 postfix Not affected
SUSE Linux Enterprise Software Development Kit 12 SP2 postfix Not affected
SUSE Linux Enterprise Software Development Kit 12 SP3 postfix Not affected
SUSE Linux Enterprise Software Development Kit 12 SP4 postfix Not affected
SUSE Manager Proxy 4.0 postfix Not affected
SUSE Manager Retail Branch Server 4.0 postfix Not affected
SUSE Manager Server 4.0 postfix Not affected
SUSE OpenStack Cloud 7 postfix Not affected
SUSE OpenStack Cloud 8 postfix Not affected
SUSE OpenStack Cloud 9 postfix Not affected
SUSE OpenStack Cloud Crowbar 8 postfix Not affected
SUSE OpenStack Cloud Crowbar 9 postfix Not affected


SUSE Timeline for this CVE

CVE page created: Fri Apr 24 16:33:55 2020
CVE page last modified: Thu Feb 1 01:36:43 2024