Bugtraq: [USN-119-1] tcpdump vulnerabilities

From: Martin Pitt <martin.pitt_at_canonical.com>
Date: Fri, 6 May 2005 09:36:38 +0200

===========================================================
Ubuntu Security Notice USN-119-1 May 06, 2005
tcpdump vulnerabilities
CAN-2005-1278, CAN-2005-1279, CAN-2005-1280
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 4.10 (Warty Warthog)
Ubuntu 5.04 (Hoary Hedgehog)

The following packages are affected:

tcpdump

The problem can be corrected by upgrading the affected package to
version 3.8.3-3ubuntu0.1 (for Ubuntu 4.10), or 3.8.3-3ubuntu0.2 (for
Ubuntu 5.04). In general, a standard system upgrade is sufficient to
effect the necessary changes.

Details follow:

It was discovered that certain invalid GRE, LDP, BGP, and RSVP packets
triggered infinite loops in tcpdump, which caused tcpdump to stop
working. This could be abused by a remote attacker to bypass tcpdump
analysis of network traffic.

Updated packages for Ubuntu 4.10 (Warty Warthog):

Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.1.diff.gz
      Size/MD5: 10585 6c4901ccc742597d67e32ce32e2f3a5c
    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.1.dsc
      Size/MD5: 672 ec71731f2e8f8fcaeb441468b8fd0a8e
    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3.orig.tar.gz
      Size/MD5: 567116 30645001f4b97019677cad88d3811904

amd64 architecture (Athlon64, Opteron, EM64T Xeon)

http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.1_amd64.deb
Size/MD5: 255638 babb2cd9f5b5fc5d37dc745cb2aeaee6

i386 architecture (x86 compatible Intel/AMD)

http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.1_i386.deb
Size/MD5: 234566 0103496ba2f39329ece8d95dc8f6e4d1

powerpc architecture (Apple Macintosh G3/G4/G5)

http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.1_powerpc.deb
Size/MD5: 245482 4bb41525b737a837172f48e99beb5f3d

Updated packages for Ubuntu 5.04 (Hoary Hedgehog):

Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.2.diff.gz
      Size/MD5: 10623 f1ca38c73c38e02d92a7aa8514e9e0e7
    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3-3ubuntu0.2.dsc
      Size/MD5: 672 109d4aff0a4e7f770bad49e2af5cd7b0
    http://security.ubuntu.com/ubuntu/pool/main/t/tcpdump/tcpdump_3.8.3.orig.tar.gz
      Size/MD5: 567116 30645001f4b97019677cad88d3811904