Gunnar Wolf uploaded new packages for Drupal7 which fixed the
following security problems:

CVE 2014-3704 / SA-CORE-2014-005:
   Highly critical: Pre Auth SQL injection

   The expandArguments function in the database abstraction API in
   Drupal core 7.x before 7.32 does not properly construct prepared
   statements, which allows remote attackers to conduct SQL injection
   attacks via an array containing crafted keys.

   https://www.drupal.org/SA-CORE-2014-005
   https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3704
   https://www.sektioneins.de/en/advisories/advisory-012014-drupal-pre-auth-sql-injection-vulnerability.html

For the squeeze-backports distribution the problems have been fixed in
version 7.14-2+deb7u7~bpo60+1.

For the wheezy-backports distribution the problems have been fixed in
version 7.32-1~bpo70+1.