Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.1512
exim security update
5 May 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: exim
Publisher: Debian
Operating System: Debian GNU/Linux
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Root Compromise -- Existing Account
Modify Arbitrary Files -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2020-28026 CVE-2020-28025 CVE-2020-28024
CVE-2020-28023 CVE-2020-28022 CVE-2020-28021
CVE-2020-28019 CVE-2020-28017 CVE-2020-28015
CVE-2020-28014 CVE-2020-28013 CVE-2020-28012
CVE-2020-28011 CVE-2020-28010 CVE-2020-28009
CVE-2020-28008 CVE-2020-28007
Original Bulletin:
http://www.debian.org/security/2021/dsa-4912
Comment: This advisory references vulnerabilities in products which run on
platforms other than Debian. It is recommended that administrators
running exim4 check for an updated version of the software for their
operating system.
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Debian Security Advisory DSA-4912-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
May 04, 2021 https://www.debian.org/security/faq
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Package : exim4
CVE ID : CVE-2020-28007 CVE-2020-28008 CVE-2020-28009 CVE-2020-28010
CVE-2020-28011 CVE-2020-28012 CVE-2020-28013 CVE-2020-28014
CVE-2020-28015 CVE-2020-28017 CVE-2020-28019 CVE-2020-28021
CVE-2020-28022 CVE-2020-28023 CVE-2020-28024 CVE-2020-28025
CVE-2020-28026
The Qualys Research Labs reported several vulnerabilities in Exim, a
mail transport agent, which could result in local privilege escalation
and remote code execution.
Details can be found in the Qualys advisory at
https://www.qualys.com/2021/05/04/21nails/21nails.txt
For the stable distribution (buster), these problems have been fixed in
version 4.92-8+deb10u6.
We recommend that you upgrade your exim4 packages.
For the detailed security status of exim4 please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/exim4
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
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