--- title: "CVE-2009-2844\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-2009-2844?format=md keywords: index, follow --- # CVE-2009-2844 Publication date 18 August 2009 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description cfg80211 in net/wireless/scan.c in the Linux kernel 2.6.30-rc1 and other versions before 2.6.31-rc6 allows remote attackers to cause a denial of service (crash) via a sequence of beacon frames in which one frame omits an SSID Information Element (IE) and the subsequent frame contains an SSID IE, which triggers a NULL pointer dereference in the cmp\_ies function. NOTE: a potential weakness in the is\_mesh function was also addressed, but the relevant condition did not exist in the code, so it is not a vulnerability. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | linux | 9.04 jaunty | Not affected | | 8.10 intrepid | Not affected | | 8.04 LTS hardy | Not affected | | 6.06 LTS dapper | Not in release | | linux-source-2.6.15 | 9.04 jaunty | Not in release | | 8.10 intrepid | Not in release | | 8.04 LTS hardy | Not in release | | 6.06 LTS dapper | 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) ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2844) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2009-2844) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2009-2844) * [Debian](https://security-tracker.debian.org/tracker/CVE-2009-2844) ### Other references *