--- title: "CVE-2013-1918\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-2013-1918?format=md keywords: index, follow --- # CVE-2013-1918 Publication date 13 May 2013 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Certain page table manipulation operations in Xen 4.1.x, 4.2.x, and earlier are not preemptible, which allows local PV kernels to cause a denial of service via vectors related to "deep page table traversal." [Read the notes from the security team](https://ubuntu.com/security/CVE-2013-1918?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | xen | 13.04 raring | Fixed 4.2.1-0ubuntu3.2 | | 12.10 quantal | Fixed 4.1.3-3ubuntu1.6 | | 12.04 LTS precise | Fixed 4.1.2-2ubuntu2.9 | | 11.10 oneiric | Ignored end of life | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | xen-3.1 | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Ignored end of life | | xen-3.2 | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Ignored end of life | | xen-3.3 | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Ignored end of life | | 8.04 LTS hardy | Not in release | --- * [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-2013-1918?format=md#patch-details) ## Notes --- ### [mdeslaur](https://launchpad.net/~mdeslaur) hypervisor packages are in universe. For issues in the hypervisor, add appropriate tags to each section, ex: Tags\_xen: universe-binary This is XSA-45 --- ### [seth-arnold](https://launchpad.net/~seth-arnold) Fix was incomplete / incorrect; see also CVE-2013-1432 ### 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 | | --- | --- | | xen | * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: * Upstream: | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-1918) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-1918) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-1918) * [Debian](https://security-tracker.debian.org/tracker/CVE-2013-1918) ### Other references * * *