--- title: "CVE-2011-1159\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-2011-1159?format=md keywords: index, follow --- # CVE-2011-1159 Publication date 4 October 2011 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description acpid.c in acpid before 2.0.9 does not properly handle a situation in which a process has connected to acpid.socket but is not reading any data, which allows local users to cause a denial of service (daemon hang) via a crafted application that performs a connect system call but no read system calls. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | acpid | 11.10 oneiric | Not affected | | 11.04 natty | Fixed 1:2.0.7-1ubuntu2.1 | | 10.10 maverick | Fixed 1.0.10-5ubuntu4.1 | | 10.04 LTS lucid | Fixed 1.0.10-5ubuntu2.2 | | 8.04 LTS hardy | Ignored end of life | --- * [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-2011-1159) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2011-1159) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2011-1159) * [Debian](https://security-tracker.debian.org/tracker/CVE-2011-1159) ### Related Ubuntu Security Notices (USN) + [USN-1234-1](https://usn.ubuntu.com/USN-1234-1) + acpid vulnerability + 20 October 2011 ### Other references * *