Simon Nielsen discovered that the BGP dissector in tcpdump, a powerful tool for network monitoring and data acquisition, does not properly handle a -1 return value from an internal function that decodes data packets. A specially crafted BGP packet can cause a denial of service via an infinite loop.
The old stable distribution (woody) is not affected by this problem.
For the stable distribution (sarge) this problem has been fixed in version 3.8.3-5sarge1.
We recommend that you upgrade your tcpdump package.
MD5 checksums of the listed files are available in the original advisory.