{"id":"UBUNTU-CVE-2015-5267","details":"lib/moodlelib.php in Moodle through 2.6.11, 2.7.x before 2.7.10, 2.8.x before 2.8.8, and 2.9.x before 2.9.2 relies on the PHP mt_rand function to implement the random_string and complex_random_string functions, which makes it easier for remote attackers to predict password-recovery tokens via a brute-force approach.","modified":"2025-07-16T07:33:09.010116Z","published":"2016-02-22T05:59:00Z","withdrawn":"2025-07-18T16:43:15Z","upstream":["CVE-2015-5267"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-5267"},{"type":"REPORT","url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-50860"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-5267"}],"affected":[{"package":{"name":"moodle","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/moodle@3.0.3+dfsg-0ubuntu1?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.3+dfsg-0ubuntu1"}]}],"versions":["2.7.9+dfsg-1","2.7.10+dfsg-1","2.7.11+dfsg-1","2.7.11+dfsg-2","2.7.12+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"moodle","binary_version":"3.0.3+dfsg-0ubuntu1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-5267.json"}},{"package":{"name":"moodle","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/moodle@3.0.3+dfsg-0ubuntu1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.0.3+dfsg-0ubuntu1"}]}],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"moodle","binary_version":"3.0.3+dfsg-0ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-5267.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}