An opensmtpd security update has been released for Arch Linux.

Arch Linux Security Advisory ASA-202002-13
==========================================

Severity: Critical
Date : 2020-02-29
CVE-ID : CVE-2020-8794
Package : opensmtpd
Type : arbitrary command execution
Remote : Yes
Link :   https://security.archlinux.org/AVG-1105

Summary
=======

The package opensmtpd before version 6.6.4p1-1 is vulnerable to
arbitrary command execution.

Resolution
==========

Upgrade to 6.6.4p1-1.

# pacman -Syu "opensmtpd>=6.6.4p1-1"

The problem has been fixed upstream in version 6.6.4p1.

Workaround
==========

None.

Description
===========

An out-of-bounds read vulnerability has been found in the client-side
code of OpenSMTPD