--- title: "CVE-2014-1581\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-2014-1581?format=md keywords: index, follow --- # CVE-2014-1581 Publication date 14 October 2014 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Use-after-free vulnerability in DirectionalityUtils.cpp in Mozilla Firefox before 33.0, Firefox ESR 31.x before 31.2, and Thunderbird 31.x before 31.2 allows remote attackers to execute arbitrary code via text that is improperly handled during the interaction between directionality resolution and layout. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 14.04 LTS trusty | Fixed 33.0+build2-0ubuntu0.14.04.1 | | 12.04 LTS precise | Fixed 33.0+build2-0ubuntu0.12.04.1 | | 10.04 LTS lucid | Ignored end of life | | thunderbird | 14.04 LTS trusty | Fixed 1:31.2.0+build2-0ubuntu0.14.04.1 | | 12.04 LTS precise | Fixed 1:31.2.0+build2-0ubuntu0.12.04.1 | | 10.04 LTS lucid | 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-2014-1581) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2014-1581) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2014-1581) * [Debian](https://security-tracker.debian.org/tracker/CVE-2014-1581) ### Related Ubuntu Security Notices (USN) + [USN-2372-1](https://usn.ubuntu.com/USN-2372-1) + Firefox vulnerabilities + 14 October 2014 + [USN-2373-1](https://usn.ubuntu.com/USN-2373-1) + Thunderbird vulnerabilities + 15 October 2014 ### Other references * *