cve/2018/CVE-2018-20657.md

### [CVE-2018-20657](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-20657)
![](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

The demangle_template function in cplus-dem.c in GNU libiberty, as distributed in GNU Binutils 2.31.1, has a memory leak via a crafted string, leading to a denial of service (memory consumption), as demonstrated by cxxfilt, a related issue to CVE-2018-12698.

### POC

#### Reference
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539
- https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88539

#### Github
- https://github.com/fokypoky/places-list
- https://github.com/fuzz-evaluator/MemLock-Fuzz-eval
- https://github.com/phonito/phonito-vulnerable-container
- https://github.com/wcventure/MemLock-Fuzz