The Login Security module 6.x-1.x before 6.x-1.3 and 7.x-1.x before 7.x-1.3 for Drupal, when using the login delay option, allows remote attackers to cause a denial of service (CPU consumption) via a large number of failed login attempts.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
Link | Tags |
---|---|
https://drupal.org/node/2023585 | vendor advisory |
http://www.openwall.com/lists/oss-security/2013/06/20/3 | mailing list |
https://drupal.org/node/2023507 | patch |
https://drupal.org/node/2023503 | patch |