The HTML rendering engine in Mozilla Thunderbird 1.5, when Block loading of remote images in mail messages is enabled, does not properly block external images from inline HTML attachments, which could allow remote attackers to obtain sensitive information, such as application version or IP address, when the user reads the email and the external image is accessed.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Thunderbird | Mozilla | 1.5 (including) | 1.5 (including) |