cve/2018/CVE-2018-20991.md

### [CVE-2018-20991](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20991)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
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### Description

An issue was discovered in the smallvec crate before 0.6.3 for Rust. The Iterator implementation mishandles destructors, leading to a double free.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Artisan-Lab/Rust-memory-safety-bugs