Symantec Firewall Malformed TCP Packet Options Remote DoS

High Nessus Plugin ID 12216


The remote host is affected by a denial of service vulnerability.


The remote system appears vulnerable to an invalid Options field within a TCP packet. At least one vendor firewall (Symantec) has been reported prone to such a bug. An attacker, utilizing this flaw, would be able to remotely shut down the remote firewall (stopping all network-based transactions) by sending a single packet to any port.


Apply vendor-supplied patches.

See Also

Plugin Details

Severity: High

ID: 12216

File Name: tcp_options_dos.nasl

Version: $Revision: 1.21 $

Type: remote

Family: Firewalls

Published: 2004/04/26

Modified: 2014/05/26

Risk Information

Risk Factor: High


Base Score: 7.8

Temporal Score: 6.6

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: CVSS2#E:U/RL:U/RC:C

Vulnerability Information

Required KB Items: Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2004/04/20

Vulnerability Publication Date: 2004/04/20

Reference Information

CVE: CVE-2004-0375

BID: 10204

OSVDB: 5596