---
title: "CVE-2017-5180\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2017-5180?format=md
keywords: index, follow
---

# CVE-2017-5180

Publication date 9 February 2017

Last updated 25 August 2025

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2017-5180?format=md#impact-score)

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## Description

Firejail before 0.9.44.4 and 0.9.38.x LTS before 0.9.38.8 LTS does not
consider the .Xauthority case during its attempt to prevent accessing user
files with an euid of zero, which allows local users to conduct
sandbox-escape attacks via vectors involving a symlink and the --private
option.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| firejail | 17.04 zesty | Not affected |
| 16.10 yakkety | Ignored end of life |
| 16.04 LTS xenial | Fixed 0.9.38-1ubuntu0.1 |
| 14.04 LTS trusty | Not in release |
| 12.04 LTS precise | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Changed |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5180)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2017-5180)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2017-5180)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2017-5180)

### Other references

* <http://www.openwall.com/lists/oss-security/2017/01/04/1>
* <https://github.com/netblue30/firejail/issues/1020>
* <http://www.openwall.com/lists/oss-security/2017/01/05/1>
* <https://www.cve.org/CVERecord?id=CVE-2017-5180>