CVE Vulnerabilities

CVE-2002-0518

Published: Aug 12, 2002 | Modified: Sep 05, 2008
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
Ubuntu

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 Software

Name Vendor Start Version End Version
Freebsd Freebsd 4.5 4.5
Freebsd Freebsd 4.5 4.5

References