GHSA-j57r-4qw6-58r3 rusty_paseto vulnerable to private key extraction due to ed25519-dalek dependency

• crates.io rusty-paseto: < 0.6.0 → fixed in 0.6.0

Impact The vulnerability, known as RUSTSEC-2022-0093, impacts the `ed25519-dalek` crate, which is a dependency of the `rusty-paseto` crate. This issue arises from a "Double Public Key Signing Function Oracle Attack" affecting versions of `ed25519-dalek` prior to v2.0. These versions expose an unsafe API for serializing and deserializing 64-byte keypairs that include both private and public keys, creating potential for certain attacks. `d25519-dalek` users utilizing these serialization and deserialization functions directly could potentially be impacted. Patches The vulnerability within the `ed25519-dalek` crate has been addressed in version 2.0. `rusty-paseto` has addressed it in release v0.6.0. Workarounds Users are recommended to upgrade to v0.6.0 of `rusty-paseto`. However, users should still ensure that their key serialization and deserialization practices are secure and avoid any practices that could lead to key exposure. References More information about RUSTSEC-2022-0093 can be found in the RustSec Advisory Database. Updates and details regarding the upcoming release of `rusty-paseto` will be documented in the project's releases and changelog. This issue was first reported by Dependabot on 2023-08-15. The source was reviewed by @rrrodzilla at that time and a determination was made that the vulnerability low harm to existing users due to the strongly typed nature of keys provided by the rusty-paseto API. @techport-om reported the vulnerability to the repository by discovering during a `cargo-audit` run on 2023-11-05 and opened issue 28. This advisory was created at that time to notify existing users.