CVE-2002-0518
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.
Scoring
- CVSS base score
- 0.04
- EPSS probability
- 1.11%
- Published
- 2002-06-11
- Last modified
- 2026-03-16
Affected products
- n/a n/a