{"id":"RUSTSEC-2023-0003","summary":"git2 does not verify SSH keys by default","details":"The git2 and libgit2-sys crates are Rust wrappers around the\n[libgit2]() C library. It was discovered that libgit2 1.5.0\nand below did not verify SSH host keys when establishing an SSH connection,\nexposing users of the library to Man-In-the-Middle attacks.\n\nThe libgit2 team assigned [CVE-2023-22742][libgit2-advisory] to this\nvulnerability. The following versions of the libgit2-sys Rust crate have been\nreleased:\n\n* libgit2-sys 0.14.2, updating the underlying libgit2 C library to version 1.5.1.\n* libgit2-sys 0.13.5, updating the underlying libgit2 C library to version 1.4.5.\n\nA new git2 crate version has also been released, 0.16.1. This version only\nbumps its libgit2-sys dependency to ensure no vulnerable libgit2-sys versions\nare used, but contains no code changes: if you update the libgit2-sys version\nthere is no need to also update the git2 crate version.\n\n[You can learn more about this vulnerability in libgit2's advisory][libgit2-advisory]\n\n[libgit2]: https://libgit2.org/\n[libgit2-advisory]: https://github.com/libgit2/libgit2/security/advisories/GHSA-8643-3wh5-rmjq","aliases":["CVE-2023-22742","GHSA-8643-3wh5-rmjq","GHSA-m4ch-rfv5-x5g3"],"modified":"2023-11-08T04:11:38.429673Z","published":"2023-01-20T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/libgit2-sys"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2023-0003.html"},{"type":"ADVISORY","url":"https://github.com/rust-lang/git2-rs/security/advisories/GHSA-m4ch-rfv5-x5g3"}],"affected":[{"package":{"name":"libgit2-sys","ecosystem":"crates.io","purl":"pkg:cargo/libgit2-sys"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.13.5"},{"introduced":"0.14.0"},{"fixed":"0.14.2"}]}],"ecosystem_specific":{"affects":{"os":[],"functions":[],"arch":[]},"affected_functions":null},"database_specific":{"informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2023-0003.json","cvss":null,"categories":["crypto-failure"]}}],"schema_version":"1.7.3"}