CVE-2023-38471

Publication date 2 November 2023

Last updated 26 August 2025

Ubuntu priority

Why this priority?

Cvss 3 Severity Score

Score breakdown

Description

A vulnerability was found in Avahi. A reachable assertion exists in the dbus_set_host_name function.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
avahi	23.10 mantic	Fixed 0.8-10ubuntu1.1
	23.04 lunar	Fixed 0.8-6ubuntu1.23.04.2
	22.10 kinetic	Ignored end of life, was deferred [2023-09-21]
	22.04 LTS jammy	Fixed 0.8-5ubuntu5.2
	20.04 LTS focal	Fixed 0.7-4ubuntu7.3
	18.04 LTS bionic	Fixed 0.7-3.1ubuntu1.3+esm2
	16.04 LTS xenial	Fixed 0.6.32~rc+dfsg-1ubuntu2.3+esm3
	14.04 LTS trusty	Fixed 0.6.31-4ubuntu1.3+esm3

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
avahi	Upstream: 894f085

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-6487-1
Avahi vulnerabilities
20 November 2023