CVE-2023-38470
Reachable assertion in avahi_escape_label
Description
A vulnerability was found in Avahi. A reachable assertion exists in the avahi_escape_label() function.
INFO
Published Date :
Nov. 2, 2023, 3:15 p.m.
Last Modified :
Nov. 3, 2025, 10:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | 
Solution
- Update the affected Avahi packages.
 - Refer to vendor guidance for specific updates.
 
Public PoC/Exploit Available at Github
                                            CVE-2023-38470 has a 1 public
                                            PoC/Exploit available at Github.
                                            Go to the Public Exploits tab to see the list.
                                        
References to Advisories, Solutions, and Tools
                                            Here, you will find a curated list of external links that provide in-depth
                                            information, practical solutions, and valuable tools related to
                                            CVE-2023-38470.
                                        
| URL | Resource | 
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-38470 | Third Party Advisory | 
| https://bugzilla.redhat.com/show_bug.cgi?id=2191690 | Issue Tracking Third Party Advisory | 
| https://access.redhat.com/security/cve/CVE-2023-38470 | Third Party Advisory | 
| https://bugzilla.redhat.com/show_bug.cgi?id=2191690 | Issue Tracking Third Party Advisory | 
| https://lists.debian.org/debian-lts-announce/2024/12/msg00011.html | 
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2023-38470 is
            associated with the following CWEs:
        
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
            (CAPEC)
            stores attack patterns, which are descriptions of the common attributes and
            approaches employed by adversaries to exploit the CVE-2023-38470
            weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
			The following list is the news that have been mention
			CVE-2023-38470 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2023-38470 vulnerability over time.
            
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
- 
                            
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2024/12/msg00011.html  - 
                            
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://access.redhat.com/security/cve/CVE-2023-38470 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2191690  - 
                            
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value  - 
                            
Initial Analysis by [email protected]
Nov. 09, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://access.redhat.com/security/cve/CVE-2023-38470 No Types Assigned https://access.redhat.com/security/cve/CVE-2023-38470 Third Party Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=2191690 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=2191690 Issue Tracking, Third Party Advisory Added CWE NIST CWE-617 Added CPE Configuration OR *cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:* versions up to (excluding) 0.9 Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*  - 
                            
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added CWE Red Hat, Inc. CWE-617  
Vulnerability Scoring Details
Base CVSS Score: 6.2
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.01 }} -0.05%
score
0.00624
percentile