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MEDIUM6.3

GHSA-m976-87wm-48fm

uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

Details

A Time-of-Check to Time-of-Use (TOCTOU) race condition exists in the mv utility of uutils coreutils during cross-device operations. The utility removes the destination path before recreating it through a copy operation. A local attacker with write access to the destination directory can exploit this window to replace the destination with a symbolic link. The subsequent privileged move operation will follow the symlink, allowing the attacker to redirect the write and overwrite an arbitrary target file with contents from the source.

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Affected packages

crates.io/coreutils
Introduced in: 0

No fixed version published yet for coreutils. Pin to a known-safe version or switch to an alternative.

References