CVEs-PoC/2021/CVE-2021-28878.md

### [CVE-2021-28878](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28878)
![](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)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

In the standard library in Rust before 1.52.0, the Zip implementation calls __iterator_get_unchecked() more than once for the same index (under certain conditions) when next_back() and next() are used together. This bug could lead to a memory safety violation due to an unmet safety requirement for the TrustedRandomAccess trait.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/Qwaz/rust-cve