Debian Security Advisory

DSA-255-1 tcpdump -- infinite loop

Date Reported:
27 Feb 2003
Affected Packages:
Security database references:
In the Bugtraq database (at SecurityFocus): BugTraq ID 4890, BugTraq ID 6974.
In Mitre's CVE dictionary: CVE-2003-0108, CVE-2002-0380.
More information:

Andrew Griffiths and iDEFENSE Labs discovered a problem in tcpdump, a powerful tool for network monitoring and data acquisition. An attacker is able to send a specially crafted network packet which causes tcpdump to enter an infinite loop.

In addition to the above problem the tcpdump developers discovered a potential infinite loop when parsing malformed BGP packets. They also discovered a buffer overflow that can be exploited with certain malformed NFS packets.

For the stable distribution (woody) these problems have been fixed in version 3.6.2-2.3.

The old stable distribution (potato) does not seem to be affected by these problems.

For the unstable distribution (sid) these problems have been fixed in version 3.7.1-1.2.

We recommend that you upgrade your tcpdump packages.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Intel IA-32:
Intel IA-64:
Motorola 680x0:
Big endian MIPS:
Little endian MIPS:
IBM S/390:
Sun Sparc:

MD5 checksums of the listed files are available in the original advisory.