nix: absolute path traversal when unpacking archives to disk

A flaw was found in Nix. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal...

nix: absolute path traversal when unpacking archives to disk

A flaw was found in Nix. Writing to arbitrary files can occur via "nix-prefetch-url --unpack" or "nix store prefetch-file --unpack" directory traversal...