TITLE:
Openswan ISAKMP IKE Message Processing Denial of Service

SECUNIA ADVISORY ID:
SA17581

VERIFY ADVISORY:
http://secunia.com/advisories/17581/

CRITICAL:
Moderately critical

IMPACT:
DoS

WHERE:
>From remote

SOFTWARE:
Openswan 2.x
http://secunia.com/product/3624/

DESCRIPTION:
Two vulnerabilities have been reported in openswan-2, which can be
exploited by malicious people to cause a DoS (Denial of Service).

1) An error in the handling of IKE packets with an invalid 3DES key
length can be exploited to cause a DoS.

2) An unknown error in the handling of certain specially crafted IKE
packets can be exploited to cause a DoS.

The vulnerabilities are related to:
SA17553

The vulnerabilities have been reported in versions prior to 2.4.2.

SOLUTION:
Vulnerability #1 has been fixed in version 2.4.2.
http://www.openswan.org/download/

ORIGINAL ADVISORY:
http://www.openswan.org/niscc2/

OTHER REFERENCES:
SA17553:
http://secunia.com/advisories/17553/

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