CVE-2025-64343: (conda) Constructor: Excessive permissions during and after installation
(conda) Constructor is a tool that enables users to create installers for conda package collections. In versions 3.12.2 and below, the installation directory inherits permissions from its parent directory. Outside of restricted directories, the permissions are very permissive and often allow write access by authenticated users. Any logged in user can make modifications during the installation for both single-user and all-user installations. This constitutes a local attack vector if the installation is in a directory local users have access to. For single-user installations in a shared directory, these permissions persist after the installation. This issue is fixed in version 3.13.0.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-64343?
CVE-2025-64343 has been classified with a moderate severity due to its potential to expose files through overly permissive permissions.
How do I fix CVE-2025-64343?
To fix CVE-2025-64343, upgrade to conda Constructor version 3.13.0 or later where the permissions issue has been addressed.
What software is affected by CVE-2025-64343?
CVE-2025-64343 affects conda Constructor versions 3.12.2 and below.
Can CVE-2025-64343 lead to unauthorized access?
Yes, CVE-2025-64343 can lead to unauthorized access if an attacker exploits the permissive permissions of the installation directory.
Where can I find more information on CVE-2025-64343?
More information regarding CVE-2025-64343 can typically be found in the release notes or security advisories for conda Constructor.