Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| n/a / n/a | affected n/a |
CWE
No CWE identifiers supplied.
References
- http://www.osvdb.org/6046
- http://www.iss.net/security_center/static/8873.php
- http://www.iss.net/security_center/static/8875.php
- http://www.securityfocus.com/bid/4524
ADP enrichment
No English description supplied.