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AUSCERT External Security Bulletin Redistribution
ESB-2013.0238
A vulnerability has been identified in Drupal core
21 February 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Drupal
Publisher: Drupal
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
Original Bulletin:
http://drupal.org/SA-CORE-2013-002
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* 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
- --------------------------END INCLUDED TEXT--------------------
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