What is the severity of USN-7373-1?

The severity of USN-7373-1 is critical due to the potential for denial of service and arbitrary code execution.

How do I fix USN-7373-1?

To fix USN-7373-1, upgrade Exim to version 4.98-1ubuntu2.1 or 4.97-4ubuntu4.3, depending on your Ubuntu version.

What systems are affected by USN-7373-1?

USN-7373-1 affects Ubuntu 24.04 and 24.10 installations running Exim versions prior to the patched updates.

Can USN-7373-1 cause downtime?

Yes, USN-7373-1 can lead to a denial of service, which may cause downtime for services that rely on Exim.

Is there a risk of data loss with USN-7373-1?

While USN-7373-1 primarily poses a risk of denial of service, exploitation could potentially lead to data loss depending on the attack vector.

Vulnerability/
USN-7373-1

26/3/2025

USN-7373-1: Exim vulnerability

First published: Wed Mar 26 2025(Updated: )

It was discovered that Exim incorrectly handled certain memory operations. A remote attacker could use this issue to cause Exim to crash, resulting in a denial of service, or possibly execute arbitrary code.

Affected Software	Affected Version	How to fix
All of
ubuntu/exim4	<4.98-1ubuntu2.1	4.98-1ubuntu2.1
Ubuntu	=24.10
All of
ubuntu/exim4-base	<4.98-1ubuntu2.1	4.98-1ubuntu2.1
Ubuntu	=24.10
All of
ubuntu/eximon4	<4.98-1ubuntu2.1	4.98-1ubuntu2.1
Ubuntu	=24.10
All of
ubuntu/exim4	<4.97-4ubuntu4.3	4.97-4ubuntu4.3
Ubuntu	=24.04
All of
ubuntu/exim4-base	<4.97-4ubuntu4.3	4.97-4ubuntu4.3
Ubuntu	=24.04
All of
ubuntu/eximon4	<4.97-4ubuntu4.3	4.97-4ubuntu4.3
Ubuntu	=24.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2025-30232

Frequently Asked Questions

What is the severity of USN-7373-1?
The severity of USN-7373-1 is critical due to the potential for denial of service and arbitrary code execution.
How do I fix USN-7373-1?
To fix USN-7373-1, upgrade Exim to version 4.98-1ubuntu2.1 or 4.97-4ubuntu4.3, depending on your Ubuntu version.
What systems are affected by USN-7373-1?
USN-7373-1 affects Ubuntu 24.04 and 24.10 installations running Exim versions prior to the patched updates.
Can USN-7373-1 cause downtime?
Yes, USN-7373-1 can lead to a denial of service, which may cause downtime for services that rely on Exim.
Is there a risk of data loss with USN-7373-1?
While USN-7373-1 primarily poses a risk of denial of service, exploitation could potentially lead to data loss depending on the attack vector.

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version/ubuntu/24.10
version/ubuntu/24.04

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