GMS-2022-178: Possible filesystem space exhaustion by local users

March 1, 2022 (updated January 11, 2023)

fscrypt through v0.3.2 creates a world-writable directory by default when setting up a filesystem, allowing unprivileged users to exhaust filesystem space. We recommend upgrading to fscrypt v0.3.3 or above and adjusting the permissions on existing fscrypt metadata directories where applicable.

For more details, see CVE-2022-25326 and https://github.com/google/fscrypt#setting-up-fscrypt-on-a-filesystem.

References

github.com/advisories/GHSA-chxf-fjcf-7fwp
github.com/google/fscrypt/security/advisories/GHSA-chxf-fjcf-7fwp

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