The remote host is missing an update to ethereal announced via advisory DSA 324-1.

https://secure1.securityspace.com/smysecure/catid.html?in=DSA%20324-1

Several of the packet dissectors in ethereal contain string handling bugs which could be exploited using a maliciously crafted packet to cause ethereal to consume excessive amounts of memory, crash, or execute arbitrary code. These vulnerabilites were announced in the following Ethereal security advisory: http://www.ethereal.com/appnotes/enpa-sa-00010.html Ethereal 0.9.4 in Debian 3.0 (woody) is affected by most of the problems described in the advisory, including: * The DCERPC dissector could try to allocate too much memory while trying to decode an NDR string. * Bad IPv4 or IPv6 prefix lengths could cause an overflow in the OSI dissector. * The tvb_get_nstringz0() routine incorrectly handled a zero-length buffer size. * The BGP, WTP, DNS, 802.11, ISAKMP, WSP, CLNP, and ISIS dissectors handled strings improperly. The following problems do NOT affect this version: * The SPNEGO dissector could segfault while parsing an invalid ASN.1 value. * The RMI dissector handled strings improperly as these modules are not present. For the stable distribution (woody) these problems have been fixed in version 0.9.4-1woody5. The old stable distribution (potato) these problems will be fixed in a future advisory. For the unstable distribution (sid) these problems are fixed in version 0.9.13-1. We recommend that you update your ethereal package.