cve/2019/CVE-2019-11503.md

### [CVE-2019-11503](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11503)
![](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

snap-confine as included in snapd before 2.39 did not guard against symlink races when performing the chdir() to the current working directory of the calling user, aka a "cwd restore permission bypass."

### POC

#### Reference
- http://www.openwall.com/lists/oss-security/2019/04/25/7
- http://www.openwall.com/lists/oss-security/2019/04/25/7
- https://www.openwall.com/lists/oss-security/2019/04/18/4
- https://www.openwall.com/lists/oss-security/2019/04/18/4

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