cve/2018/CVE-2018-12617.md

### [CVE-2018-12617](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12617)
![](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

qmp_guest_file_read in qga/commands-posix.c and qga/commands-win32.c in qemu-ga (aka QEMU Guest Agent) in QEMU 2.12.50 has an integer overflow causing a g_malloc0() call to trigger a segmentation fault when trying to allocate a large memory chunk. The vulnerability can be exploited by sending a crafted QMP command (including guest-file-read with a large count value) to the agent via the listening socket.

### POC

#### Reference
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6
- https://gist.github.com/fakhrizulkifli/c7740d28efa07dafee66d4da5d857ef6
- https://www.exploit-db.com/exploits/44925/
- https://www.exploit-db.com/exploits/44925/

#### Github
No PoCs found on GitHub currently.