cve/2018/CVE-2018-18521.md

### [CVE-2018-18521](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-18521)
![](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

Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.

### POC

#### Reference
- https://sourceware.org/bugzilla/show_bug.cgi?id=23786

#### Github
- https://github.com/flyrev/security-scan-ci-presentation
- https://github.com/kaidotdev/kube-trivy-exporter