Ubuntu Security Notices
USN-4366-1

USN-4366-1: Exim vulnerability

Publication date

19 May 2020

Overview

Exim could be made to access sensitive information or bypass authentication if it received a specially crafted input.

Releases

20.04 LTS 19.10 18.04 LTS 16.04 LTS 14.04 LTS

Packages

exim4 - Exim is a mail transport agent

Details

It was discovered that Exim incorrectly handled certain inputs.
An remote attacker could possibly use this issue to access sensitive
information or authentication bypass.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release	Package Version
20.04 focal	exim4-base – 4.93-13ubuntu1.1
	exim4-daemon-heavy – 4.93-13ubuntu1.1
	exim4-daemon-light – 4.93-13ubuntu1.1
19.10 eoan	exim4-base – 4.92.1-1ubuntu3.1
	exim4-daemon-heavy – 4.92.1-1ubuntu3.1
	exim4-daemon-light – 4.92.1-1ubuntu3.1
18.04 bionic	exim4-base – 4.90.1-1ubuntu1.5
	exim4-daemon-heavy – 4.90.1-1ubuntu1.5
	exim4-daemon-light – 4.90.1-1ubuntu1.5
16.04 xenial	exim4-base – 4.86.2-2ubuntu2.6
	exim4-daemon-heavy – 4.86.2-2ubuntu2.6
	exim4-daemon-light – 4.86.2-2ubuntu2.6
14.04 trusty	exim4-base – 4.82-3ubuntu2.4+esm2
	exim4-daemon-heavy – 4.82-3ubuntu2.4+esm2
	exim4-daemon-light – 4.82-3ubuntu2.4+esm2

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

CVE-2020-12783

CVE-2020-12783