The TCP/IP stack in multiple operating systems allows remote attackers to cause a denial of service (CPU consumption) via a TCP packet with the correct sequence number but the wrong Acknowledgement number, which generates a large number of keep alive packets. NOTE: some followups indicate that this issue could not be replicated.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Windows_2000 | Microsoft | * | * |
| Windows_2003_server | Microsoft | datacenter_64-bit-sp1 (including) | datacenter_64-bit-sp1 (including) |
| Windows_2003_server | Microsoft | enterprise (including) | enterprise (including) |
| Windows_2003_server | Microsoft | enterprise-sp1 (including) | enterprise-sp1 (including) |
| Windows_2003_server | Microsoft | enterprise_64-bit (including) | enterprise_64-bit (including) |
| Windows_2003_server | Microsoft | enterprise_64-bit-sp1 (including) | enterprise_64-bit-sp1 (including) |
| Windows_2003_server | Microsoft | r2 (including) | r2 (including) |
| Windows_2003_server | Microsoft | r2-sp1 (including) | r2-sp1 (including) |
| Windows_2003_server | Microsoft | standard (including) | standard (including) |
| Windows_2003_server | Microsoft | standard-sp1 (including) | standard-sp1 (including) |
| Windows_2003_server | Microsoft | standard_64-bit (including) | standard_64-bit (including) |
| Windows_2003_server | Microsoft | web (including) | web (including) |
| Windows_2003_server | Microsoft | web-sp1 (including) | web-sp1 (including) |
| Windows_98se | Microsoft | * | * |
| Windows_nt | Microsoft | 4.0 (including) | 4.0 (including) |
| Windows_nt | Microsoft | 4.0-sp1 (including) | 4.0-sp1 (including) |
| Windows_nt | Microsoft | 4.0-sp2 (including) | 4.0-sp2 (including) |
| Windows_nt | Microsoft | 4.0-sp3 (including) | 4.0-sp3 (including) |
| Windows_nt | Microsoft | 4.0-sp4 (including) | 4.0-sp4 (including) |
| Windows_nt | Microsoft | 4.0-sp5 (including) | 4.0-sp5 (including) |
| Windows_nt | Microsoft | 4.0-sp6 (including) | 4.0-sp6 (including) |
| Windows_nt | Microsoft | 4.0-sp6a (including) | 4.0-sp6a (including) |
| Windows_xp | Microsoft | * | * |