===================================================================== CERT-Renater Note d'Information No. 2013/VULN064 _____________________________________________________________________ DATE : 21/02/2013 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S) : Systems running Drupal core versions 7.x prior to 7.20. ====================================================================== http://drupal.org/SA-CORE-2013-002 ______________________________________________________________________ * Advisory ID: DRUPAL-SA-CORE-2013-002 * Project: Drupal core [1] * Version: 7.x * Date: 2013-February-20 * Security risk: Critical [2] * Exploitable from: Remote * Vulnerability: Denial of service - -------- DESCRIPTION --------------------------------------------------------- Drupal core's Image module allows for the on-demand generation of image derivatives. This capability can be abused by requesting a large number of new derivatives which can fill up the server disk space, and which can cause a very high CPU load. Either of these effects may lead to the site becoming unavailable or unresponsive. Please see the Drupal 7.20 release notes [3] for important notes about the changes which were made to fix this issue, since some sites will require extra testing and care when deploying this Drupal core release. - -------- CVE IDENTIFIER(S) ISSUED -------------------------------------------- * /A CVE identifier [4] will be requested, and added upon issuance, in accordance with Drupal Security Team processes./ - -------- VERSIONS AFFECTED --------------------------------------------------- * Drupal core 7.x versions prior to 7.20. - -------- SOLUTION ------------------------------------------------------------ Install the latest version: * If you use Drupal 7.x, upgrade to Drupal core 7.20 [5]. Also see the Drupal core [6] project page. - -------- REPORTED BY --------------------------------------------------------- * Bèr Kessels [7] * aBrookland [8] * Chad Fennell [9] - -------- FIXED BY ------------------------------------------------------------ * Damien Tournoud [10] of the Drupal Security Team * Peter Wolanin [11] of the Drupal Security Team * David Rothstein [12] of the Drupal Security Team * Heine Deelstra [13] of the Drupal Security Team * Bèr Kessels [14] - -------- COORDINATED BY ------------------------------------------------------ * David Rothstein [15] of the Drupal Security Team * Stéphane Corlosquet [16] of the Drupal Security Team * Peter Wolanin [17] of the Drupal Security Team * Greg Knaddison [18] of the Drupal Security Team - -------- CONTACT AND MORE INFORMATION ---------------------------------------- The Drupal security team can be reached at security at drupal.org or via the contact form at http://drupal.org/contact [19]. Learn more about the Drupal Security team and their policies [20], writing secure code for Drupal [21], and securing your site [22]. [1] http://drupal.org/project/drupal [2] http://drupal.org/security-team/risk-levels [3] http://drupal.org/drupal-7.20-release-notes [4] http://cve.mitre.org/ [5] http://drupal.org/drupal-7.20-release-notes [6] http://drupal.org/project/drupal [7] http://drupal.org/user/2663 [8] http://drupal.org/user/2274988 [9] http://drupal.org/user/10297 [10] http://drupal.org/user/22211 [11] http://drupal.org/user/49851 [12] http://drupal.org/user/124982 [13] http://drupal.org/user/17943 [14] http://drupal.org/user/2663 [15] http://drupal.org/user/124982 [16] http://drupal.org/user/52142 [17] http://drupal.org/user/49851 [18] http://drupal.org/user/36762 [19] http://drupal.org/contact [20] http://drupal.org/security-team [21] http://drupal.org/writing-secure-code [22] http://drupal.org/security/secure-configuration ====================================================================== ========================================================= Serveur de référence du CERT-Renater https://services.renater.fr/ssi/ ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23 - 25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email: certsvp@renater.fr + =========================================================