FreeBSD 4.1.1 and earlier, and possibly other BSD-based OSes, uses an insufficient random number generator to generate initial TCP sequence numbers (ISN), which allows remote attackers to spoof TCP connections.
2000-12-19T05:00:00.000
2025-04-03T01:03:51.193
Deferred
CVSSv2: 7.5 (HIGH)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
Type | Vendor | Product | Version/Range | Vulnerable? |
---|---|---|---|---|
Operating System | freebsd | freebsd | 2.0 | Yes |
Operating System | freebsd | freebsd | 3.0 | Yes |
Operating System | freebsd | freebsd | 4.0 | Yes |
Operating System | freebsd | freebsd | 4.1 | Yes |
Operating System | freebsd | freebsd | 4.1.1 | Yes |