### [CVE-2017-18120](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18120)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brightgreen)

### Description

A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file, because last_name is mishandled, a different vulnerability than CVE-2017-1000421.

### POC

#### Reference
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120

#### Github
- https://github.com/andir/nixos-issue-db-example