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.
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History
No history.

Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2024-08-08T02:49:28.879Z
Reserved: 2002-06-07T00:00:00
Link: CVE-2002-0518

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Status : Deferred
Published: 2002-08-12T04:00:00.000
Modified: 2025-04-03T01:03:51.193
Link: CVE-2002-0518

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