Total vulnerabilities in the database
The SYN cache (syncache) and SYN cookie (syncookie) mechanism in FreeBSD 4.5 and earlier allows remote attackers to cause a denial of service (crash) (1) via a SYN packet that is accepted using syncookies that causes a null pointer to be referenced for the socket's TCP options, or (2) by killing and restarting a process that listens on the same socket, which does not properly clear the old inpcb pointer on restart.
| Software | From | Fixed in |
|---|---|---|
| freebsd / freebsd | 4.5-stable | 4.5-stable.x |
| freebsd / freebsd | 4.5-release | 4.5-release.x |