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advisory-db/crates/flatbuffers/RUSTSEC-2019-0028.md
Tony Arcieri ac125ee29a Translate database into V3 advisory format (#420) 
As proposed in #240 and tracked in #414, this PR translates all
advisories into the new "V3" advisory format, which is based on Markdown
with leading TOML front matter.

This format makes it easier to see rendered Markdown syntax
descriptions, whether rendered by an IDE or GitHub. This should help
with both crafting advisories initially as well as review, and ideally
encourages more lengthy descriptions.

Support for this format shipped in `cargo-audit` v0.12.0 on
May 6th, 2020.
2020-10-01 18:29:11 -07:00

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[advisory]
id = "RUSTSEC-2019-0028"
package = "flatbuffers"
date = "2019-10-20"
url = "https://github.com/google/flatbuffers/issues/5530"

[affected.functions]
"flatbuffers::Follow::follow" = [">= 0.4.0", "<= 0.6.0"]

[versions]
patched = [">= 0.6.1"]
unaffected = ["< 0.4.0"]

Unsound impl Follow for bool

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.