---
title: "CVE-2015-3214\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-2015-3214?format=md
keywords: index, follow
---

# CVE-2015-3214

Publication date 17 June 2015

Last updated 24 July 2024

---

Ubuntu priority

**Low**

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

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## Description

The pit\_ioport\_read in i8254.c in the Linux kernel before 2.6.33 and QEMU
before 2.3.1 does not distinguish between read lengths and write lengths,
which might allow guest OS users to execute arbitrary code on the host OS
by triggering use of an invalid index.

[Read the notes from the security team](https://ubuntu.com/security/CVE-2015-3214?format=md#notes)

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| qemu | 15.04 vivid | Fixed 1:2.2+dfsg-5expubuntu9.3 |
| 14.10 utopic | Ignored end of life |
| 14.04 LTS trusty | Fixed 2.0.0+dfsg-2ubuntu1.15 |
| 12.04 LTS precise | Not in release |
| qemu-kvm | 15.04 vivid | Not in release |
| 14.10 utopic | Not in release |
| 14.04 LTS trusty | Not in release |
| 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)
* [Patch details](https://ubuntu.com/security/CVE-2015-3214?format=md#patch-details)

## Notes

---

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

introduced in 0505bcdec8228d8de39ab1a02644e71999e7c05, 1.3.0 first version

### 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 |
| --- | --- |
| qemu | * Upstream:   <http://git.qemu.org/?p=qemu.git;a=commitdiff;h=d4862a87e31a51de9eb260f25c9e99a75efe3235> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-3214)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-3214)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-3214)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2015-3214)

### Related Ubuntu Security Notices (USN)

+ [USN-2692-1](https://usn.ubuntu.com/USN-2692-1)
+ QEMU vulnerabilities
+ 28 July 2015

### Other references

* <https://www.mail-archive.com/qemu-devel@nongnu.org/msg304063.html>
* <https://www.cve.org/CVERecord?id=CVE-2015-3214>