butte-rs/butte

RUSTSEC-2019-0028: Unsound `impl Follow for bool`

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Unsound impl Follow for bool

Details
Package flatbuffers
Version 0.6.0
URL google/flatbuffers#5530
Date 2019-10-20
Unaffected versions < 0.4.0

The implementation of impl Follow for bool allows to reinterpret arbitrary bytes as a bool.

In Rust bool has stringent requirements for its in-memory representation. Use of this function
allows to violate these requirements and invoke undefined behaviour in safe code.

See advisory page for additional details.

This was addressed in a previous commit to the original flatbuffers Rust code: 0622302.