CVE-2019-25010: Rust Failure Crate Vulnerable to Type confusion

August 25, 2021 (updated August 25, 2023)

Safe Rust code can implement malfunctioning __private_get_type_id__ and cause type confusion when downcasting, which is an undefined behavior.

Users who derive Fail trait are not affected.

References

github.com/advisories/GHSA-r98r-j25q-rmpr
github.com/rust-lang-nursery/failure
github.com/rust-lang-nursery/failure/issues/336
nvd.nist.gov/vuln/detail/CVE-2019-25010
rustsec.org/advisories/RUSTSEC-2019-0036.html

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