--- title: "CVE-2014-7840\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-2014-7840?format=md keywords: index, follow --- # CVE-2014-7840 Publication date 14 November 2014 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The host\_from\_stream\_offset function in arch\_init.c in QEMU, when loading RAM during migration, allows remote attackers to execute arbitrary code via a crafted (1) offset or (2) length value in savevm data. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | qemu | 14.10 utopic | Fixed 2.1+dfsg-4ubuntu6.3 | | 14.04 LTS trusty | Fixed 2.0.0+dfsg-2ubuntu1.9 | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | qemu-kvm | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Fixed 1.0+noroms-0ubuntu14.21 | | 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-2014-7840?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: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-7840) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-7840) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-7840) * [Debian](https://security-tracker.debian.org/tracker/CVE-2014-7840) ### Related Ubuntu Security Notices (USN) + [USN-2439-1](https://usn.ubuntu.com/USN-2439-1) + QEMU vulnerabilities + 11 December 2014 ### Other references * *