{"id":"GHSA-c2hm-mjxv-89r4","aliases":["RUSTSEC-2023-0055"],"url":"https://o3.security/vulnerability/GHSA-c2hm-mjxv-89r4","summary":"Multiple soundness issues in lexical","details":"`lexical` contains multiple soundness issues:\n\n 1. [Bytes::read() allows creating instances of types with invalid bit patterns](https://github.com/Alexhuszagh/rust-lexical/issues/102)\n 1. [BytesIter::read() advances iterators out of bounds](https://github.com/Alexhuszagh/rust-lexical/issues/101)\n 1. [The `BytesIter` trait has safety invariants but is public and not marked `unsafe`](https://github.com/Alexhuszagh/rust-lexical/issues/104)\n 1. [`write_float()` calls `MaybeUninit::assume_init()` on uninitialized data, which is is not allowed by the Rust abstract machine](https://github.com/Alexhuszagh/rust-lexical/issues/95)\n1. [`radix()` calls `MaybeUninit::assume_init()` on uninitialized data, which is is not allowed by the Rust abstract machine](https://github.com/Alexhuszagh/rust-lexical/issues/126)\n\nThe crate also has some correctness issues.\n\n## Alternatives\n\nFor quickly parsing floating-point numbers third-party crates are no longer needed. A fast float parsing algorithm by the author of `lexical` has been [merged](https://github.com/rust-lang/rust/pull/86761) into libcore.\n\nFor quickly parsing integers, consider `atoi` and `btoi` crates (100% safe code). `atoi_radix10` provides even faster parsing, but only with `-C target-cpu=native`, and at the cost of some `unsafe`.\n\nFor formatting integers in a `#[no_std]` context consider the [`numtoa`](https://crates.io/crates/numtoa) crate.\n\nFor working with big numbers consider `num-bigint` and `num-traits`.\n","published":"2023-09-04T17:02:00Z","modified":"2024-09-16T16:50:14Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"crates.io","name":"lexical","fixedVersion":"7.0.0"}],"fix":null,"references":[{"type":"PACKAGE","url":"https://github.com/Alexhuszagh/rust-lexical"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2023-0055.html"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2024-09-16T16:50:14Z"}}