The Land attack results an attacked system to spend most or all of the available CPU time in its TCP/IP-stack.
Below partial list of affected systems, see http://www.geek-girl.com/bugtaq/1997_4/0380.html for more information.
| Operating System | Version | Velnerability Status |
|---|---|---|
| AIX | 3 | YES |
| AIX | 3.2, 4, 4.1, 4.2.1 | NO |
| BSDI | 2.0, 2.1 (vanilla) | YES |
| BSDI | 2.1 (K210-021,K210-022,K210-024), 3.0 | NO |
| DG/UX | R4.12 | NO |
| Digital UNIX | 3.2c, 4.0 | NO |
| FreeBSD | 2.1.6-RELEASE, 2.2.2-RELEASE | NO |
| FreeBSD | 2.2.5-RELEASE, 2.2.5-STABLE, 3.0-CURRENT | YES |
| HP-UX | 9.03, 10.01, 10.20 | NO |
| IRIX | 5.2, 5.3 | YES |
| IRIX | 6.2, 6.3, 6.4 | NO |
| Linux | 1.2.13, 2.1.65, 2.0.30 | NO |
| NetBSD | 1.1, 1.2, 1.2a, 1.2.1, 1.3_ALPHA | YES |
| OpenBSD | 2.2 | NO |
| Solaris | 2.4, 2.5, 2.5.1, 2.5.2, 2.6 | NO |
| SunOS | 4.1.3, 4.1.4 | YES |
| Windows 95 | vanilla, Winsock 2+VIPUPD.EXE | YES |
| Windows NT | 4.0, 4.0+SP3, 4.0+SP3+simptcp-fix | YES |