P4

**Name of the Vulnerable Software and Affected Versions** Mozilla Firefox version 1.5.0.3 **Description** The issue allows remote attackers to cause a denial of service via a web page with a large number of IMG elements in which the SRC attribute is a `mailto` URI. It was noted that the web page caused a temporary browser slowdown instead of a crash. **Recommendations** For Mozilla Firefox version 1.5.0.3, as a temporary workaround, consider avoiding web pages with a large number of IMG elements that use the `mailto` URI in the SRC attribute until a fix is available. At the moment, there is no information about a newer version that contains a fix for this issue.