--- title: "CVE-2006-0457\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-2006-0457?format=md keywords: index, follow --- # CVE-2006-0457 Publication date 14 March 2006 Last updated 17 July 2025 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Race condition in the (1) add\_key, (2) request\_key, and (3) keyctl functions in Linux kernel 2.6.x allows local users to cause a denial of service (crash) or read sensitive kernel memory by modifying the length of a string argument between the time that the kernel calculates the length and when it copies the data into kernel memory. ## Status Show unmaintained releases --- * [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-2006-0457) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2006-0457) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2006-0457) * [Debian](https://security-tracker.debian.org/tracker/CVE-2006-0457) ### Related Ubuntu Security Notices (USN) + [USN-263-1](https://usn.ubuntu.com/USN-263-1) + Linux kernel vulnerabilities + 13 March 2006 ### Other references *