Algorithmic complexity vulnerability in Moodle 1.9.x before 1.9.19, 2.0.x before 2.0.10, 2.1.x before 2.1.7, and 2.2.x before 2.2.4 allows remote authenticated users to cause a denial of service (CPU consumption) by using the advanced-search feature on a database activity that has many records.
Per: http://cwe.mitre.org/data/definitions/407.html 'CWE-407: Algorithmic Complexity'
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[oss-security] 20120717 Moodle security notifications public