--- title: "CVE-2015-7327\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-2015-7327?format=md keywords: index, follow --- # CVE-2015-7327 Publication date 24 September 2015 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Mozilla Firefox before 41.0 does not properly restrict the availability of High Resolution Time API times, which allows remote attackers to track last-level cache access, and consequently obtain sensitive information, via crafted JavaScript code that makes performance.now calls. [Read the notes from the security team](https://ubuntu.com/security/CVE-2015-7327?format=md#notes) ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | firefox | 15.04 vivid | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | Not affected | | thunderbird | 15.04 vivid | Not affected | | 14.04 LTS trusty | Not in release | | 12.04 LTS precise | 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) ## Notes --- ### [seth-arnold](https://launchpad.net/~seth-arnold) Windows-specific issue doesn't affect Linux or OS X ## References * [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7327) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2015-7327) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2015-7327) * [Debian](https://security-tracker.debian.org/tracker/CVE-2015-7327) ### Other references * * * * *