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From: Thomas Deutschmann
Reply-To: security@gentoo.org
To: gentoo-announce@lists.gentoo.org
Message-ID: <617e1e61-e1e8-e5cc-e30c-973acd175a06@gentoo.org>
Subject: [ GLSA 201803-01 ] Exim: Multiple vulnerabilities
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Gentoo Linux Security Advisory GLSA 201803-01
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https://security.gentoo.org/
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Severity: High
Title: Exim: Multiple vulnerabilities
Date: March 06, 2018
Bugs: #638772, #647240
ID: 201803-01
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Synopsis
========
Multiple vulnerabilities have been found in Exim, the worst of which
allows remote attackers to execute arbitrary code.
Background
==========
Exim is a message transfer agent (MTA) designed to be a a highly
configurable, drop-in replacement for sendmail.
Affected packages
=================
-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-mta/exim < 4.90.1 >= 4.90.1
Description
===========
Multiple vulnerabilities have been discovered in Exim. Please review
the CVE identifiers referenced below for details.
Impact
======
A remote attacker, by connecting to the SMTP listener daemon, could
possibly execute arbitrary code with the privileges of the process or
cause a Denial of Service condition.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Exim users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-mta/exim-4.90.1"
References
==========
[ 1 ] CVE-2017-16943
https://nvd.nist.gov/vuln/detail/CVE-2017-16943
[ 2 ] CVE-2017-16944
https://nvd.nist.gov/vuln/detail/CVE-2017-16944
[ 3 ] CVE-2018-6789
https://nvd.nist.gov/vuln/detail/CVE-2018-6789
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/201803-01
Concerns?
=========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.
License
=======
Copyright 2018 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
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