CVEs-PoC/2021/CVE-2021-20284.md

### [CVE-2021-20284](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20284)
![](https://img.shields.io/static/v1?label=Product&message=binutils&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=Binutils%202.35.1%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-119&color=brightgreen)

### Description

A flaw was found in GNU Binutils 2.35.1, where there is a heap-based buffer overflow in _bfd_elf_slurp_secondary_reloc_section in elf.c due to the number of symbols not calculated correctly. The highest threat from this vulnerability is to system availability.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/deezombiedude612/rca-tool
- https://github.com/fluidattacks/makes
- https://github.com/sumithra28thiru/root-casuse-analysis