REDHAT-BUG-2378905
Helm is a package manager for Charts for Kubernetes. Prior to 3.18.4, a specially crafted Chart.yaml file along with a specially linked Chart.lock file can lead to local code execution when dependencies are updated. Fields in a Chart.yaml file, that are carried over to a Chart.lock file when dependencies are updated and this file is written, can be crafted in a way that can cause execution if that same content were in a file that is executed (e.g., a bash.rc file or shell script). If the Chart.lock file is symlinked to one of these files updating dependencies will write the lock file content to the symlinked file. This can lead to unwanted execution. Helm warns of the symlinked file but did not stop execution due to symlinking. This issue has been resolved in Helm v3.18.4.
Affected Software
Event History
Frequently Asked Questions
What is the severity of REDHAT-BUG-2378905?
The severity of REDHAT-BUG-2378905 is considered high due to the potential for local code execution.
How do I fix REDHAT-BUG-2378905?
To fix REDHAT-BUG-2378905, upgrade to Helm version 3.18.4 or later.
What versions of Helm are affected by REDHAT-BUG-2378905?
Helm versions prior to 3.18.4 are affected by REDHAT-BUG-2378905.
What type of vulnerability is REDHAT-BUG-2378905?
REDHAT-BUG-2378905 is a local code execution vulnerability related to Helm's handling of Chart.yaml and Chart.lock files.
Who is impacted by REDHAT-BUG-2378905?
Users of Helm versions prior to 3.18.4 who utilize Charts for Kubernetes are impacted by REDHAT-BUG-2378905.