Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1nZmdtLWNocjMteDZweM4AAwqk

prettytable-rs: Force cast a &Vec<T> to &[T] may lead to undefined behavior

In function Table::as_ref, a reference of vector is force cast to slice. There are multiple problems here:

1. To guarantee the size is correct, we have to first do Vec::shrink_to_fit. The function requires a mutable reference, so we have to force cast from immutable to mutable, which is undefined behavior (UB).
2. Even if (1) is sound, &Vec<T> and &[T] still might not have the same layout. Treating them equally may lead to undefinted behavior (UB).

Permalink: https://github.com/advisories/GHSA-gfgm-chr3-x6px
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1nZmdtLWNocjMteDZweM4AAwqk
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: almost 2 years ago

Identifiers: GHSA-gfgm-chr3-x6px
References:

• https://github.com/phsym/prettytable-rs/issues/145
• https://rustsec.org/advisories/RUSTSEC-2022-0074.html
• https://github.com/advisories/GHSA-gfgm-chr3-x6px

Repository: https://github.com/phsym/prettytable-rs
Blast Radius: 0.0

Affected Packages