medium5.0
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…
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Freebsd | Freebsd | Version 4.5 |
References
- NVD record
- CVE.org record
- http://www.iss.net/security_center/static/8873.php
- http://www.iss.net/security_center/static/8875.php
- http://www.osvdb.org/6046
- http://www.securityfocus.com/bid/4524
- http://www.iss.net/security_center/static/8873.php
- http://www.iss.net/security_center/static/8875.php
- http://www.osvdb.org/6046
- http://www.securityfocus.com/bid/4524