--- title: "CVE-2013-6386\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-2013-6386?format=md keywords: index, follow --- # CVE-2013-6386 Publication date 7 December 2013 Last updated 24 July 2024 --- Ubuntu priority **Medium** [Why this priority?](https://ubuntu.com/security/cves/about#priority ) Toggle side navigation ## Description Drupal 6.x before 6.29 and 7.x before 7.24 uses the PHP mt\_rand function to generate random numbers, which uses predictable seeds and allows remote attackers to predict security strings and bypass intended restrictions via a brute force attack. ## Status Show unmaintained releases | Package | Ubuntu Release | Status | | --- | --- | --- | | drupal6 | 17.04 zesty | Not in release | | 16.10 yakkety | Not in release | | 16.04 LTS xenial | Not in release | | 15.10 wily | Not in release | | 15.04 vivid | Not in release | | 14.10 utopic | Not in release | | 14.04 LTS trusty | Not in release | | 13.10 saucy | Not in release | | 13.04 raring | Ignored end of life | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Ignored end of life | | drupal7 | 17.04 zesty | Not affected | | 16.10 yakkety | Not affected | | 16.04 LTS xenial | Not affected | | 15.10 wily | Not affected | | 15.04 vivid | Not affected | | 14.10 utopic | Not affected | | 14.04 LTS trusty | Not affected | | 13.10 saucy | Ignored end of life | | 13.04 raring | Ignored end of life | | 12.10 quantal | Ignored end of life | | 12.04 LTS precise | Ignored end of life | | 10.04 LTS lucid | Not in release | --- * [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-2013-6386) * [NVD](https://nvd.nist.gov/vuln/detail/CVE-2013-6386) * [Launchpad](https://launchpad.net/bugs/cve/CVE-2013-6386) * [Debian](https://security-tracker.debian.org/tracker/CVE-2013-6386) ### Other references * *