--- title: "CVE-2011-1747\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-2011-1747?format=md keywords: index, follow --- # CVE-2011-1747 Publication date 9 May 2011 Last updated 24 July 2024 --- Ubuntu priority **Low** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description The agp subsystem in the Linux kernel 2.6.38.5 and earlier does not properly restrict memory allocation by the (1) AGPIOC\_RESERVE and (2) AGPIOC\_ALLOCATE ioctls, which allows local users to cause a denial of service (memory consumption) by making many calls to these ioctls. ### From the Ubuntu Security Team Vasiliy Kulikov discovered that the AGP driver did not check the size of certain memory allocations. A local attacker with access to the video subsystem could exploit this to run the system out of memory, leading to a denial of service. [Read the notes from the security team](https://ubuntu.com/security/CVE-2011-1747?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 12.10 quantal | Ignored | | 12.04 LTS precise | Ignored | | 11.10 oneiric | Ignored | | 11.04 natty | Ignored | | 10.10 maverick | Ignored | | 10.04 LTS lucid | Ignored | | 8.04 LTS hardy | Ignored | | 6.06 LTS dapper | Not in release | | linux-armadaxp | 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 | 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 | Ignored | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-fsl-imx51 | 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 | | 6.06 LTS dapper | Not in release | | linux-lts-backport-maverick | 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 | Ignored | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-lts-backport-natty | 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 | Ignored | | 8.04 LTS hardy | Not in release | | linux-lts-backport-oneiric | 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 | Ignored | | 8.04 LTS hardy | Not in release | | linux-lts-quantal | 12.10 quantal | Not in release | | 12.04 LTS precise | Ignored | | 11.10 oneiric | Not in release | | 10.04 LTS lucid | Not in release | | 8.04 LTS hardy | Not in release | | linux-mvl-dove | 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 affected | | 10.04 LTS lucid | Not affected | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | Not in release | | linux-ti-omap4 | 12.10 quantal | Not affected | | 12.04 LTS precise | Not affected | | 11.10 oneiric | Not affected | | 11.04 natty | Not affected | | 10.10 maverick | Not affected | | 10.04 LTS lucid | 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 --- ### [kees](https://launchpad.net/~kees) no upstream fix yet --- ### [apw](https://launchpad.net/~apw) below is a partial fix, complete fix still remains break-fix: - b522f02184b413955f3bc952e3776ce41edc6355 --- ### [mdeslaur](https://launchpad.net/~mdeslaur) CAP\_SYS\_RAWIO is needed to exploit this, so is not security relevant. Ignoring. ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1747) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1747) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1747) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1747) ### Other references *