TITLE:
Ingate Firewall and SIParator Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA18138

VERIFY ADVISORY:
http://secunia.com/advisories/18138/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

OPERATING SYSTEM:
Ingate SIParator 4.x
http://secunia.com/product/5687/
Ingate Firewall 4.x
http://secunia.com/product/4050/

DESCRIPTION:
A vulnerability has been reported in Ingate Firewall and SIParator,
which potentially can be exploited by malicious people to cause a DoS
(Denial of Service).

The vulnerability is caused due to an error in the kernel when
handling certain TCP packets in a media stream. This can be exploited
to cause a deadlock in the kernel when a SYN packet that is sent out
for a TCP media stream causes a RST packet to be returned.

SOLUTION:
Update to version 4.3.4.
http://www.ingate.com/upgrades.php

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
http://www.ingate.com/relnote-434.php

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