--- title: "CVE-2010-3881\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-2010-3881?format=md keywords: index, follow --- # CVE-2010-3881 Publication date 23 December 2010 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description arch/x86/kvm/x86.c in the Linux kernel before 2.6.36.2 does not initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory via read operations on the /dev/kvm device. ### From the Ubuntu Security Team Vasiliy Kulikov discovered that kvm did not correctly clear memory. A local attacker could exploit this to read portions of the kernel stack, leading to a loss of privacy. [Read the notes from the security team](https://ubuntu.com/security/CVE-2010-3881?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 11.04 natty | Not affected | | 10.10 maverick | Fixed 2.6.35-25.43 | | 10.04 LTS lucid | Fixed 2.6.32-28.52 | | 9.10 karmic | Not affected | | 8.04 LTS hardy | Not affected | | 6.06 LTS dapper | Not in release | | linux-ec2 | 11.04 natty | Not in release | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 2.6.32-313.25 | | 9.10 karmic | Not affected | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-fsl-imx51 | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not affected | | 9.10 karmic | Not affected | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-lts-backport-maverick | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.35-25.44 | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-lts-backport-natty | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not affected | | 8.04 LTS hardy | Not in release | | linux-mvl-dove | 11.04 natty | Not in release | | 10.10 maverick | Fixed 2.6.32-414.30 | | 10.04 LTS lucid | Fixed 2.6.32-211.27 | | 9.10 karmic | Ignored end of life | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-source-2.6.15 | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Not in release | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not affected | | linux-ti-omap4 | 11.04 natty | Not affected | | 10.10 maverick | Fixed 2.6.35-903.16 | | 10.04 LTS lucid | Not in release | | 9.10 karmic | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | 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) ## Notes --- ### [smb](https://launchpad.net/~smb) Releases before Lucid do not contain the IOCTL functions affected. For ti-omap, mvl-dove and ec2 the change of KVM should not matter at all. ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2010-3881) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2010-3881) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2010-3881) * [Debian](https://security-tracker.debian.org/tracker/CVE-2010-3881) ### Related Ubuntu Security Notices (USN) + [USN-1054-1](https://usn.ubuntu.com/USN-1054-1) + Linux kernel vulnerabilities + 1 February 2011 + [USN-1187-1](https://usn.ubuntu.com/USN-1187-1) + Linux kernel (Maverick backport) vulnerabilities + 9 August 2011 + [USN-1119-1](https://usn.ubuntu.com/USN-1119-1) + Linux kernel (OMAP4) vulnerabilities + 20 April 2011 + [USN-1161-1](https://usn.ubuntu.com/USN-1161-1) + Linux kernel vulnerabilities (EC2) + 13 July 2011 + [USN-1093-1](https://usn.ubuntu.com/USN-1093-1) + Linux Kernel vulnerabilities (Marvell Dove) + 25 March 2011 ### Other references *