--- title: "CVE-2011-2496\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-2011-2496?format=md keywords: index, follow --- # CVE-2011-2496 Publication date 6 October 2011 Last updated 4 July 2026 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Integer overflow in the vma\_to\_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG\_ON and system crash) via a crafted mremap system call that expands a memory mapping. ### From the Ubuntu Security Team Robert Swiecki discovered that mapping extensions were incorrectly handled. A local attacker could exploit this to crash the system, leading to a denial of service. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux-goldfish | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-grouper | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-maguro | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-mako | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-manta | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Ignored | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-flo | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-lts-utopic | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux-lts-vivid | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | 10.04 LTS lucid | Not in release | | linux | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not affected | | 13.10 saucy | Not affected | | 13.04 raring | Not affected | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-10.44 | | 10.10 maverick | Fixed 2.6.35-31.62 | | 10.04 LTS lucid | Fixed 2.6.32-36.79 | | 8.04 LTS hardy | Fixed 2.6.24-30.96 | | linux-armadaxp | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not in release | | 11.04 natty | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | linux-ec2 | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 11.04 natty | Not in release | | 10.10 maverick | Ignored end of life | | 10.04 LTS lucid | Fixed 2.6.32-340.40 | | 8.04 LTS hardy | Not in release | | linux-fsl-imx51 | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.31-611.29 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-maverick | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.35-31.62~lucid1 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-natty | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 11.04 natty | Not in release | | 10.10 maverick | Not in release | | 10.04 LTS lucid | Fixed 2.6.38-10.44~lucid1 | | 8.04 LTS hardy | Not in release | | linux-lts-backport-oneiric | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 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-lts-quantal | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | linux-lts-raring | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | linux-lts-saucy | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Not in release | | 12.10 quantal | Not in release | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-lts-trusty | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 12.04 LTS precise | Not affected | | 10.04 LTS lucid | Not in release | | linux-mvl-dove | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 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 | | 11.04 natty | Not in release | | 10.10 maverick | Fixed 2.6.32-420.38 | | 10.04 LTS lucid | Ignored end of life, was pending | | 8.04 LTS hardy | Not in release | | linux-raspi2 | 15.10 wily | Not affected | | 15.04 vivid | Not in release | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not in release | | linux-ti-omap4 | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not affected | | 13.04 raring | Not affected | | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 2.6.38-1209.17 | | 10.10 maverick | Fixed 2.6.35-903.27 | | 10.04 LTS lucid | Not in release | | 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-2011-2496?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 | | --- | --- | | linux | * Introduced by [1da177e](https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2), fixed by [982134b](https://git.kernel.org/linus/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8) * Introduced by [1da177e](https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2), fixed by [a626ca6](https://git.kernel.org/linus/a626ca6a656450e9f4df91d0dda238fff23285f4) * Introduced by [1da177e](https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2), fixed by [42c36f6](https://git.kernel.org/linus/42c36f63ac1366ab0ecc2d5717821362c259f517) | ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2496) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-2496) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-2496) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-2496) ### Related Ubuntu Security Notices (USN) + [USN-1269-1](https://usn.ubuntu.com/USN-1269-1) + Linux kernel (EC2) vulnerabilities + 21 November 2011 + [USN-1272-1](https://usn.ubuntu.com/USN-1272-1) + Linux kernel vulnerabilities + 21 November 2011 + [USN-1241-1](https://usn.ubuntu.com/USN-1241-1) + Linux kernel (i.MX51) vulnerabilities + 25 October 2011 + [USN-1286-1](https://usn.ubuntu.com/USN-1286-1) + Linux kernel vulnerabilities + 3 December 2011 + [USN-1280-1](https://usn.ubuntu.com/USN-1280-1) + Linux (OMAP4) vulnerabilities + 24 November 2011 + [USN-1268-1](https://usn.ubuntu.com/USN-1268-1) + Linux kernel vulnerabilities + 21 November 2011 + [USN-1281-1](https://usn.ubuntu.com/USN-1281-1) + Linux (OMAP4) vulnerabilities + 24 November 2011 + [USN-1274-1](https://usn.ubuntu.com/USN-1274-1) + Linux kernel (Marvell DOVE) vulnerabilities + 21 November 2011 + [USN-1278-1](https://usn.ubuntu.com/USN-1278-1) + Linux (Maverick backport) vulnerabilities + 24 November 2011 + [USN-1167-1](https://usn.ubuntu.com/USN-1167-1) + Linux kernel vulnerabilities + 13 July 2011 + [USN-1256-1](https://usn.ubuntu.com/USN-1256-1) + Linux kernel (Natty backport) vulnerabilities + 9 November 2011 ### Other references * *