---
title: "CVE-2010-3879\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-2010-3879?format=md
keywords: index, follow
---

# CVE-2010-3879

Publication date 3 December 2010

Last updated 24 July 2024

---

Ubuntu priority

**Medium**

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

Toggle side navigation

## Description

FUSE, possibly 2.8.5 and earlier, allows local users to create mtab entries
with arbitrary pathnames, and consequently unmount any filesystem, via a
symlink attack on the parent directory of the mountpoint of a FUSE
filesystem, a different vulnerability than CVE-2010-0789.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2010-3879?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| fuse | 10.10 maverick | Fixed 2.8.4-1ubuntu1.1 |
| 10.04 LTS lucid | Fixed 2.8.1-1.1ubuntu2.2 |
| 9.10 karmic | Fixed 2.7.4-1.1ubuntu4.4 |
| 8.04 LTS hardy | Fixed 2.7.2-1ubuntu2.2 |
| 6.06 LTS dapper | Ignored end of life |
| util-linux | 10.10 maverick | Fixed 2.17.2-0ubuntu1.10.10.1 |
| 10.04 LTS lucid | Fixed 2.17.2-0ubuntu1.10.04.1 |
| 9.10 karmic | Fixed 2.16-1ubuntu5.1 |
| 8.04 LTS hardy | Fixed 2.13.1-5ubuntu3.1 |
| 6.06 LTS dapper | Ignored end of life |

---

* [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)

will also need to patch util-linux to get --no-canonicalize
See novell bug for a bunch of commits, and new patches
util-linux negligible (update only needed for fuse)

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3879)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2010-3879)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2010-3879)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2010-3879)

### Related Ubuntu Security Notices (USN)

+ [USN-1045-2](https://usn.ubuntu.com/USN-1045-2)
+ util-linux update
+ 19 January 2011

+ [USN-1045-1](https://usn.ubuntu.com/USN-1045-1)
+ FUSE vulnerability
+ 19 January 2011

### Other references

* <http://www.halfdog.net/Security/FuseTimerace/>
* <http://seclists.org/fulldisclosure/2010/Nov/15>
* <https://www.cve.org/CVERecord?id=CVE-2010-3879>