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Date: Wed, 29 Aug 2007 17:05:07 -0700
From: Kees Cook <>
Subject: [USN-507-1] tcp-wrappers vulnerability

Ubuntu Security Notice USN-507-1            August 30, 2007
tcp-wrappers vulnerability

A security issue affects the following Ubuntu releases:

Ubuntu 7.04

This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.

The problem can be corrected by upgrading your system to the
following package versions:

Ubuntu 7.04:
  libwrap0                        7.6.dbs-11ubuntu0.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

Details follow:

It was discovered that the TCP wrapper library was incorrectly allowing
connections to services that did not specify server-side connection
details.  Remote attackers could connect to services that had been
configured to block such connections.  This only affected Ubuntu Feisty.

Updated packages for Ubuntu 7.04:

  Source archives:
      Size/MD5:    51563 a66ffe0947add0d626dc9d813298c931
      Size/MD5:      784 4430f26d95e93408a174206b2da912d2
      Size/MD5:    99548 3a8f32fa7a030d84c7260578ffb46c29

  amd64 architecture (Athlon64, Opteron, EM64T Xeon):
      Size/MD5:    37234 297a97e32256bfd222a08b7a249fca50
      Size/MD5:    30876 81ab1ff3bc887cba421857b92599f064
      Size/MD5:    80144 c502d7ca97203abef9d8468ae14a2751

  i386 architecture (x86 compatible Intel/AMD):
      Size/MD5:    34432 64f1a0e9d0dc0dd2eae5af32d35e8a2b
      Size/MD5:    29374 31f7af2847ae763f268c0f3a4c683335
      Size/MD5:    78086 8ee708787754927c56bed98631cc739c

  powerpc architecture (Apple Macintosh G3/G4/G5):
      Size/MD5:    37028 62d8517de1af829ebd5baf0cc39d2cbb
      Size/MD5:    32804 0cc1db9a4c4f5577a99e887d8094c86a
      Size/MD5:    87362 54d419fa50c66cad5c04ad2ca3ed4163

  sparc architecture (Sun SPARC/UltraSPARC):
      Size/MD5:    35094 e400ccb9a4c8f78c1e451d5a3602958f
      Size/MD5:    28856 abe647adb76cba044f17786e028da758
      Size/MD5:    79062 e6e97f4e4e585dfaef10f08a1608952b

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