{"id":"GHSA-j57r-4qw6-58r3","summary":"rusty_paseto vulnerable to private key extraction due to ed25519-dalek dependency","details":"## Impact\n\nThe 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. \n\n## Patches\n\nThe vulnerability within the `ed25519-dalek` crate has been addressed in version 2.0. `rusty-paseto` has addressed it in release v0.6.0. \n\n## Workarounds\n\nUsers 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.\n\n## References\n\nMore information about RUSTSEC-2022-0093 can be found in the [RustSec Advisory Database](https://rustsec.org/advisories/RUSTSEC-2022-0093.html). Updates and details regarding the upcoming release of `rusty-paseto` will be documented in the project's [releases](https://github.com/your-repo/rusty-paseto/releases) and [changelog](https://github.com/your-repo/rusty-paseto/blob/main/CHANGELOG.md).  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](https://github.com/rrrodzilla/rusty_paseto/issues/28). This advisory was created at that time to notify existing users.\n","modified":"2023-11-07T23:44:25Z","published":"2023-11-07T23:44:25Z","database_specific":{"severity":"LOW","github_reviewed":true,"github_reviewed_at":"2023-11-07T23:44:25Z","nvd_published_at":null,"cwe_ids":[]},"references":[{"type":"WEB","url":"https://github.com/rrrodzilla/rusty_paseto/security/advisories/GHSA-j57r-4qw6-58r3"},{"type":"WEB","url":"https://github.com/rrrodzilla/rusty_paseto/commit/42718c1b757c1dfabb80621f2f48b8268f7fa24e"},{"type":"PACKAGE","url":"https://github.com/rrrodzilla/rusty_paseto"},{"type":"WEB","url":"https://github.com/rrrodzilla/rusty_paseto/releases/tag/v0.6.0"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2022-0093.html"}],"affected":[{"package":{"name":"rusty-paseto","ecosystem":"crates.io","purl":"pkg:cargo/rusty-paseto"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.6.0"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 0.5.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/11/GHSA-j57r-4qw6-58r3/GHSA-j57r-4qw6-58r3.json"}}],"schema_version":"1.9.0"}