CVE-2015-6670

ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.

ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.

ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.

ownCloud Server before 7.0.8, 8.0.x before 8.0.6, and 8.1.x before 8.1.1 does not properly check ownership of calendars, which allows remote authenticated users to read arbitrary calendars via the calid parameter to apps/calendar/export.php.

Updated owncloud package fixes security vulnerabilities:

In ownCloud before 8.0.6, due to an incorrect usage of an ownCloud internal file system function the passed path to the file scanner was resolved relatively. An authenticated adversary may thus be able to get a listing of directories (but not the containing files) existing on the filesystem. However, it is not possible to access any of these files (CVE-2015-6500).

In ownCloud before 8.0.6, due to not properly checking the ownership of an calendar, an authenticated attacker is able to download calendars of other users via the "calid" GET parameter to export.php in /apps/calendar/ (CVE-2015-6670).

The owncloud package has been updated to version 8.0.8, which fixes these issues, as well as other bugs and other not-yet-disclosed security issues.