The bash completion script for fscrypt through v0.3.2 allows injection of commands via crafted mountpoint paths, allowing privilege escalation under a specific set of circumstances. A local user who has control over mountpoint paths could potentially escalate their privileges if they create a malicious mountpoint path and if the system administrator happens to be using the fscrypt bash completion script to complete mountpoint paths. We recommend upgrading to v0.3.3 or above.

For more details, see CVE-2022-25328.

References

• GHSA-w4f8-fxq2-j35v