{"id":"UBUNTU-CVE-2015-5963","details":"contrib.sessions.middleware.SessionMiddleware in Django 1.8.x before 1.8.4, 1.7.x before 1.7.10, 1.4.x before 1.4.22, and possibly other versions allows remote attackers to cause a denial of service (session store consumption or session record removal) via a large number of requests to contrib.auth.views.logout, which triggers the creation of an empty session record.","modified":"2026-02-04T02:23:05.749345Z","published":"2015-08-18T17:00:00Z","related":["USN-2720-1"],"upstream":["CVE-2015-5963"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-5963"},{"type":"REPORT","url":"https://www.djangoproject.com/weblog/2015/aug/18/security-releases/"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2720-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2015-5963"}],"affected":[{"package":{"name":"python-django","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/python-django@1.6.1-2ubuntu0.10?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.6.1-2ubuntu0.10"}]}],"versions":["1.5.4-1ubuntu1","1.6-1","1.6.1-1","1.6.1-2","1.6.1-2ubuntu0.1","1.6.1-2ubuntu0.2","1.6.1-2ubuntu0.3","1.6.1-2ubuntu0.4","1.6.1-2ubuntu0.5","1.6.1-2ubuntu0.6","1.6.1-2ubuntu0.8","1.6.1-2ubuntu0.9"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"1.6.1-2ubuntu0.10","binary_name":"python-django"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2015/UBUNTU-CVE-2015-5963.json"}}],"schema_version":"1.7.3","severity":[{"type":"Ubuntu","score":"medium"}]}