What is the severity of USN-7414-1?

The security issue identified in USN-7414-1 is considered to be a denial of service vulnerability due to inadequate handling of the threaded xz decoder.

How do I fix USN-7414-1?

To resolve the vulnerability in USN-7414-1, update the xz-utils package to version 5.6.2-2ubuntu0.2 for Ubuntu 24.10 or 5.6.1+really5.4.5-1ubuntu0.2 for Ubuntu 24.04.

What types of attacks are possible due to USN-7414-1?

USN-7414-1 could allow attackers to crash XZ Utils or potentially execute arbitrary code if a user is tricked into processing a malicious xz file.

Which systems are affected by USN-7414-1?

The USN-7414-1 vulnerability affects Ubuntu systems running the xz-utils package versions mentioned in the advisory.

Who discovered the vulnerability in USN-7414-1?

The vulnerability detailed in USN-7414-1 was discovered by Harri K. Koskinen.

Vulnerability/
USN-7414-1

3/4/2025

USN-7414-1: XZ Utils vulnerability

First published: Thu Apr 03 2025(Updated: )

Harri K. Koskinen discovered that XZ Utils incorrectly handled the threaded xz decoder. If a user or automated system were tricked into processing an xz file, a remote attacker could use this issue to cause XZ Utils to crash, resulting in a denial of service, or possibly execute arbitrary code.

Affected Software	Affected Version	How to fix
All of
ubuntu/xz-utils	<5.6.2-2ubuntu0.2	5.6.2-2ubuntu0.2
Ubuntu	=24.10
All of
ubuntu/xz-utils	<5.6.1+really5.4.5-1ubuntu0.2	5.6.1+really5.4.5-1ubuntu0.2
Ubuntu	=24.04

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Reference Links

Child vulnerabilities

(Contains the following vulnerabilities)

CVE-2025-31115

Frequently Asked Questions

What is the severity of USN-7414-1?
The security issue identified in USN-7414-1 is considered to be a denial of service vulnerability due to inadequate handling of the threaded xz decoder.
How do I fix USN-7414-1?
To resolve the vulnerability in USN-7414-1, update the xz-utils package to version 5.6.2-2ubuntu0.2 for Ubuntu 24.10 or 5.6.1+really5.4.5-1ubuntu0.2 for Ubuntu 24.04.
What types of attacks are possible due to USN-7414-1?
USN-7414-1 could allow attackers to crash XZ Utils or potentially execute arbitrary code if a user is tricked into processing a malicious xz file.
Which systems are affected by USN-7414-1?
The USN-7414-1 vulnerability affects Ubuntu systems running the xz-utils package versions mentioned in the advisory.
Who discovered the vulnerability in USN-7414-1?
The vulnerability detailed in USN-7414-1 was discovered by Harri K. Koskinen.

collector/usn
source/Ubuntu
agent/software-canonical-lookup
agent/last-modified-date
agent/references
agent/source
agent/tags
agent/softwarecombine
agent/description
agent/title
agent/first-publish-date
agent/type
agent/event
package-manager/ubuntu
vendor/ubuntu
canonical/ubuntu
version/ubuntu/24.10
version/ubuntu/24.04

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