cve/2016/CVE-2016-9558.md

### [CVE-2016-9558](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9558)
![](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

(1) libdwarf/dwarf_leb.c and (2) dwarfdump/print_frames.c in libdwarf before 20161124 allow remote attackers to have unspecified impact via a crafted bit pattern in a signed leb number, aka a "negation overflow."

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2016/11/19/6
- https://blogs.gentoo.org/ago/2016/11/19/libdwarf-negation-overflow-in-dwarf_leb-c/
- https://www.prevanders.net/dwarfbug.html

#### Github
- https://github.com/mrash/afl-cve