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.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2002-06-11T04:00:00

Updated: 2024-08-08T02:49:28.879Z

Reserved: 2002-06-07T00:00:00

Link: CVE-2002-0518

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2002-08-12T04:00:00.000

Modified: 2008-09-05T20:28:14.257

Link: CVE-2002-0518

cve-icon Redhat

No data.