full-disclosure - [USN-385-1] tar vulnerability

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Date: Mon, 27 Nov 2006 15:31:02 -0800
From: Kees Cook <kees@...ntu.com>
To: ubuntu-security-announce@...ts.ubuntu.com
Cc: full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com
Subject: [USN-385-1] tar vulnerability

=========================================================== 
Ubuntu Security Notice USN-385-1          November 27, 2006
tar vulnerability
CVE-2006-6097
===========================================================

A security issue affects the following Ubuntu releases:

Ubuntu 5.10
Ubuntu 6.06 LTS
Ubuntu 6.10

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 5.10:
  tar                                      1.15.1-2ubuntu0.2

Ubuntu 6.06 LTS:
  tar                                      1.15.1-2ubuntu2.1

Ubuntu 6.10:
  tar                                      1.15.91-2ubuntu0.3

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

Details follow:

Teemu Salmela discovered that tar still handled the deprecated 
GNUTYPE_NAMES record type.  This record type could be used to create 
symlinks that would be followed while unpacking a tar archive.  If a 
user or an automated system were tricked into unpacking a specially 
crafted tar file, arbitrary files could be overwritten with user 
privileges.


Updated packages for Ubuntu 5.10:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2.diff.gz
      Size/MD5:    29654 155f4628f9fef19aa20e3927a857fd0d
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2.dsc
      Size/MD5:      574 22006def60be25510613a955ca7e90d2
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1.orig.tar.gz
      Size/MD5:  2204322 d87021366fe6488e9dc398fcdcb6ed7d

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2_amd64.deb
      Size/MD5:   531932 d507bfc76276c9cc43ebf56f9d69038a

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2_i386.deb
      Size/MD5:   519858 ed19ee38f074d841366737e880a5c626

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2_powerpc.deb
      Size/MD5:   533886 5d0d477d0bbe5589f5a3181144099c92

  sparc architecture (Sun SPARC/UltraSPARC)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu0.2_sparc.deb
      Size/MD5:   525056 1fa9aa25fbbc81c4fcf767c28b4eb991

Updated packages for Ubuntu 6.06 LTS:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1.diff.gz
      Size/MD5:    30078 32b5ca833a90aa5bcbc3941a07dbf81a
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1.dsc
      Size/MD5:      574 c68c40e5d79b9afd13626694b0bcb2d4
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1.orig.tar.gz
      Size/MD5:  2204322 d87021366fe6488e9dc398fcdcb6ed7d

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1_amd64.deb
      Size/MD5:   532022 ddcb1e2e8770645f683b462b095ff851

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1_i386.deb
      Size/MD5:   519384 be7fa1ac67587e1ef574ed457e967454

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1_powerpc.deb
      Size/MD5:   533876 4b9404feef3aaaf23cf28abd1432517b

  sparc architecture (Sun SPARC/UltraSPARC)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.1-2ubuntu2.1_sparc.deb
      Size/MD5:   523654 1164fe3b20e4f530df21258907f3cd9d

Updated packages for Ubuntu 6.10:

  Source archives:

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3.diff.gz
      Size/MD5:    16849 1776a8a649f3fec68c6990accd5f47c8
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3.dsc
      Size/MD5:      596 58f9bea1622976afa48a7eb61e8945e8
    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91.orig.tar.gz
      Size/MD5:  2016367 e2338a16b0464ec03826e000dae990a0

  amd64 architecture (Athlon64, Opteron, EM64T Xeon)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3_amd64.deb
      Size/MD5:   361636 9580b1e23dc58caf6af9543dbe045dca

  i386 architecture (x86 compatible Intel/AMD)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3_i386.deb
      Size/MD5:   346396 4bb2868d5fc2855a8242c6c89c7afb12

  powerpc architecture (Apple Macintosh G3/G4/G5)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3_powerpc.deb
      Size/MD5:   365486 79ddf1293d8e759fd96fee0c612d6000

  sparc architecture (Sun SPARC/UltraSPARC)

    http://security.ubuntu.com/ubuntu/pool/main/t/tar/tar_1.15.91-2ubuntu0.3_sparc.deb
      Size/MD5:   348136 ffdb48742e8bc415682f18d6c74f70c2


Download attachment "signature.asc" of type "application/pgp-signature" (190 bytes)

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