---
title: "CVE-2013-4535\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-2013-4535?format=md
keywords: index, follow
---

# CVE-2013-4535

Publication date 20 February 2014

Last updated 25 August 2025

---

Ubuntu priority

**Low**

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

## Cvss 3 Severity Score

**8.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2013-4535?format=md#impact-score)

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## Description

The virtqueue\_map\_sg function in hw/virtio/virtio.c in QEMU before 1.7.2
allows remote attackers to execute arbitrary files via a crafted savevm
image, related to virtio-block or virtio-serial read.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| qemu | 14.04 LTS trusty | Fixed 2.0.0+dfsg-2ubuntu1.3 |
| 13.10 saucy | Ignored end of life |
| 12.10 quantal | Not in release |
| 12.04 LTS precise | Not in release |
| 10.04 LTS lucid | Not in release |
| qemu-kvm | 14.04 LTS trusty | Not in release |
| 13.10 saucy | Not in release |
| 12.10 quantal | Ignored end of life |
| 12.04 LTS precise | Fixed 1.0+noroms-0ubuntu14.17 |
| 10.04 LTS lucid | 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-2013-4535?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=commit;h=36cf2a37132c7f01fa9adb5f95f5312b27742fd4> * Upstream:   <http://git.qemu.org/?p=qemu.git;a=commit;h=937251408051e0489f78e4db3c92e045b147b38b> |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

8.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | Low |
  | User interaction | None |
  | Scope | Changed |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 8.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4535)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-4535)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-4535)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2013-4535)

### Related Ubuntu Security Notices (USN)

+ [USN-2342-1](https://usn.ubuntu.com/USN-2342-1)
+ QEMU vulnerabilities
+ 8 September 2014

### Other references

* <http://lists.gnu.org/archive/html/qemu-devel/2013-12/msg00394.html>
* <http://lists.gnu.org/archive/html/qemu-devel/2013-12/msg00408.html>
* <https://www.cve.org/CVERecord?id=CVE-2013-4535>