---
title: "CVE-2015-3202\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-2015-3202?format=md
keywords: index, follow
---

# CVE-2015-3202

Publication date 21 May 2015

Last updated 24 July 2024

---

Ubuntu priority

**High**

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

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## Description

fusermount in FUSE before 2.9.3-15 does not properly clear the environment
before invoking (1) mount or (2) umount as root, which allows local users
to write to arbitrary files via a crafted LIBMOUNT\_MTAB environment
variable that is used by mount's debugging feature.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2015-3202?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| fuse | 15.04 vivid | Fixed 2.9.2-4ubuntu4.15.04.1 |
| 14.10 utopic | Fixed 2.9.2-4ubuntu4.14.10.1 |
| 14.04 LTS trusty | Fixed 2.9.2-4ubuntu4.14.04.1 |
| 12.04 LTS precise | Fixed 2.8.6-2ubuntu2.1 |
| ntfs-3g | 15.04 vivid | Fixed 1:2014.2.15AR.3-1ubuntu0.2 |
| 14.10 utopic | Not affected |
| 14.04 LTS trusty | Not affected |
| 12.04 LTS precise | Not affected |

---

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

## Notes

---

### [mdeslaur](https://launchpad.net/~mdeslaur)

ntfs-3g in vivid+ is built with an embedded fuse library instead
of the system one
original ntfs-3g patch was incomplete

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3202)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-3202)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-3202)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-3202)

### Related Ubuntu Security Notices (USN)

+ [USN-2617-1](https://usn.ubuntu.com/USN-2617-1)
+ FUSE vulnerability
+ 21 May 2015

+ [USN-2617-2](https://usn.ubuntu.com/USN-2617-2)
+ NTFS-3G vulnerability
+ 22 May 2015

+ [USN-2617-3](https://usn.ubuntu.com/USN-2617-3)
+ NTFS-3G vulnerability
+ 27 May 2015

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2015-3202>