8/7/2024

USN-6881-1: Exim vulnerability

First published: Mon Jul 08 2024(Updated: )

It was discovered that Exim did not enforce STARTTLS sync point on client side. An attacker could possibly use this issue to perform response injection during MTA SMTP sending.

Affected Software	Affected Version	How to fix
All of
ubuntu/exim4	<4.93-13ubuntu1.11	4.93-13ubuntu1.11
Ubuntu Ubuntu	=20.04
All of
ubuntu/exim4-base	<4.93-13ubuntu1.11	4.93-13ubuntu1.11
Ubuntu Ubuntu	=20.04
All of
ubuntu/eximon4	<4.93-13ubuntu1.11	4.93-13ubuntu1.11
Ubuntu Ubuntu	=20.04
All of
ubuntu/exim4	<4.90.1-1ubuntu1.10+esm4	4.90.1-1ubuntu1.10+esm4
Ubuntu Ubuntu	=18.04
All of
ubuntu/exim4-base	<4.90.1-1ubuntu1.10+esm4	4.90.1-1ubuntu1.10+esm4
Ubuntu Ubuntu	=18.04
All of
ubuntu/eximon4	<4.90.1-1ubuntu1.10+esm4	4.90.1-1ubuntu1.10+esm4
Ubuntu Ubuntu	=18.04
All of
ubuntu/exim4	<4.86.2-2ubuntu2.6+esm7	4.86.2-2ubuntu2.6+esm7
Ubuntu Ubuntu	=16.04
All of
ubuntu/exim4-base	<4.86.2-2ubuntu2.6+esm7	4.86.2-2ubuntu2.6+esm7
Ubuntu Ubuntu	=16.04
All of
ubuntu/eximon4	<4.86.2-2ubuntu2.6+esm7	4.86.2-2ubuntu2.6+esm7
Ubuntu Ubuntu	=16.04
All of
ubuntu/exim4	<4.82-3ubuntu2.4+esm8	4.82-3ubuntu2.4+esm8
Ubuntu Ubuntu	=14.04
All of
ubuntu/exim4-base	<4.82-3ubuntu2.4+esm8	4.82-3ubuntu2.4+esm8
Ubuntu Ubuntu	=14.04
All of
ubuntu/eximon4	<4.82-3ubuntu2.4+esm8	4.82-3ubuntu2.4+esm8
Ubuntu Ubuntu	=14.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2021-38371

collector/usn
source/Ubuntu
agent/software-canonical-lookup
agent/last-modified-date
agent/title
agent/references
agent/softwarecombine
agent/severity
agent/first-publish-date
agent/type
agent/description
agent/event
agent/tags
agent/trending
package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu ubuntu
version/ubuntu ubuntu/20.04
version/ubuntu ubuntu/18.04
version/ubuntu ubuntu/16.04
version/ubuntu ubuntu/14.04

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