Drupal 7 includes a password hashing API to ensure that user supplied passwords are not stored in plain text.
A vulnerability in this API allowed an attacker to send specially crafted requests resulting in CPU and memory exhaustion. This may lead to the site becoming unavailable or unresponsive (denial of service).
This vulnerability could be exploited by anonymous users.
Part of security release SA-CORE-2014-006
This vulnerability affects the following application versions:
- Drupal 7.0
- Drupal 7.1
- Drupal 7.2
- Drupal 7.3
- Drupal 7.4
- Drupal 7.5
- Drupal 7.6
- Drupal 7.7
- Drupal 7.8
- Drupal 7.9
- Drupal 7.10
- Drupal 7.11
- Drupal 7.12
- Drupal 7.13
- Drupal 7.14
- Drupal 7.15
- Drupal 7.16
- Drupal 7.17
- Drupal 7.18
- Drupal 7.19
- Drupal 7.20
- Drupal 7.21
- Drupal 7.22
- Drupal 7.23
- Drupal 7.24
- Drupal 7.25
- Drupal 7.26
- Drupal 7.27
- Drupal 7.28
- Drupal 7.29
- Drupal 7.30
- Drupal 7.31
- Drupal 7.32
- Drupal 7.33