Heap-based buffer overflow in Mozilla Thunderbird before 1.5.0.5 and SeaMonkey before 1.0.3 allows remote attackers to cause a denial of service (crash) via a VCard attachment with a malformed base64 field, which copies more data than expected due to an integer underflow.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Seamonkey | Mozilla | 1.0.1 | 1.0.1 |
| Seamonkey | Mozilla | 1.0 | 1.0 |
| Seamonkey | Mozilla | 1.0.2 | 1.0.2 |
| Thunderbird | Mozilla | 1.5 | 1.5 |
| Thunderbird | Mozilla | 1.5.0.2 | 1.5.0.2 |
| Seamonkey | Mozilla | 1.0 | 1.0 |
| Thunderbird | Mozilla | 1.5.0.4 | 1.5.0.4 |