---
title: "CVE-2014-9718\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-2014-9718?format=md
keywords: index, follow
---

# CVE-2014-9718

Publication date 21 April 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 (1) BMDMA and (2) AHCI HBA interfaces in the IDE functionality in QEMU
1.0 through 2.1.3 have multiple interpretations of a function's return
value, which allows guest OS users to cause a host OS denial of service
(memory consumption or infinite loop, and system crash) via a PRDT with
zero complete sectors, related to the bmdma\_prepare\_buf and
ahci\_dma\_prepare\_buf functions.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| qemu | 15.04 vivid | Not affected |
| 14.10 utopic | Ignored end of life |
| 14.04 LTS trusty | Fixed 2.0.0+dfsg-2ubuntu1.17 |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | 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 | Fixed 1.0+noroms-0ubuntu14.24 |
| 10.04 LTS lucid | 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-2014-9718?format=md#patch-details)

### 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=3251bdcf1c67427d964517053c3d185b46e618e8> |

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9718)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-9718)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-9718)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2014-9718)

### Related Ubuntu Security Notices (USN)

+ [USN-2724-1](https://usn.ubuntu.com/USN-2724-1)
+ QEMU vulnerabilities
+ 27 August 2015

### Other references

* <http://www.openwall.com/lists/oss-security/2015/04/20/7>
* <https://www.cve.org/CVERecord?id=CVE-2014-9718>