The optional feature 'Anti-Virus & Sandbox' of i-FILTER contains an issue with improper pattern file validation. If exploited, the product may treat an unauthorized pattern file as an authorized. If the product uses a specially crafted pattern file, information in the server where the product is running may be retrieved, and/or cause a denial of service (DoS) condition.
The product has two different sources of the same data or information, but it uses the source that has less support for verification, is less trusted, or is less resistant to attack.