---
title: "CVE-2012-3411\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-2012-3411?format=md
keywords: index, follow
---

# CVE-2012-3411

Publication date 5 March 2013

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

Dnsmasq before 2.63test1, when used with certain libvirt configurations,
replies to requests from prohibited interfaces, which allows remote
attackers to cause a denial of service (traffic amplification) via a
spoofed DNS query.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2012-3411?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| dnsmasq | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Not affected |
| 12.04 LTS precise | Ignored |
| 11.10 oneiric | Ignored end of life |
| 11.04 natty | Ignored |
| 10.04 LTS lucid | Ignored |
| 8.04 LTS hardy | Ignored end of life |
| libvirt | 13.10 saucy | Not affected |
| 13.04 raring | Not affected |
| 12.10 quantal | Ignored |
| 12.04 LTS precise | Ignored |
| 11.10 oneiric | Ignored end of life |
| 11.04 natty | Ignored |
| 10.04 LTS lucid | Ignored |
| 8.04 LTS hardy | 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)
* [Patch details](https://ubuntu.com/security/CVE-2012-3411?format=md#patch-details)

## Notes

---

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

patch sent upstream but not yet sent upstream or in the git
repository (http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=summary)

---

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

upstream has added a new --bind-dynamic option in 2.63 instead
of using the RH patch. libvirt needs to be modified to use
--bind-dynamic also.

---

### [seth-arnold](https://launchpad.net/~seth-arnold)

(pt2) fixes a likely FTBFS introduced by (pt1) -- there may be more,
the commit message didn't make finding this one easy

---

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

changes are intrusive and may introduce behaviour changes in
stable releases. We will not be backporting this fix.
Marking as ignored.

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| dnsmasq | * Upstream:   <http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=54dd393f3938fc0c19088fbd319b95e37d81a2b0> * Upstream:   <http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=2f38141f434e23292f84cefc33e8de76fb856147> |
| libvirt | * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=719c2c7665e5826a8cf05531080fe20354b39de1> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=bf402e77b6d53a4e569b3aa76aef9c7d589c0cf2> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=753ff83a50263d6975f88d6605d4b5ddfcc97560> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=5114431396fd125b6ebe4d1a20a981111f948ee7> * Upstream:   <http://libvirt.org/git/?p=libvirt.git;a=commit;h=ff33f807739dc2950e4df8c1d4007ce9f8b290c0> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-3411)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2012-3411)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2012-3411)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2012-3411)

### Other references

* <http://www.openwall.com/lists/oss-security/2012/07/12/5>
* <https://www.cve.org/CVERecord?id=CVE-2012-3411>