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Debian Security Advisory DSA-2074-1                  security@debian.org
http://www.debian.org/security/                        Giuseppe Iuculano
July 21, 2010                         http://www.debian.org/security/faq
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Package        : ncompress
Vulnerability  : integer underflow
Problem type   : local
Debian-specific: no
CVE Id         : CVE-2010-0001

Aki Helin discovered an integer underflow in ncompress, the original
Lempel-Ziv compress/uncompress programs.
This could lead to the execution of arbitrary code when trying to decompress
a crafted LZW compressed gzip archive.

For the stable distribution (lenny), this problem has been fixed in
version 4.2.4.2-1+lenny1.

For the testing (squeeze) and unstable (sid) distribution, this
problem has been fixed in version 4.2.4.3-1.


We recommend that you upgrade your ncompress package.

Upgrade instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 5.0 alias lenny
- --------------------------------

Debian (stable)
- ---------------

Stable updates are available for alpha, amd64, arm, armel, hppa, i386, ia64,
 mips, mipsel, powerpc, s390 and sparc.

Source archives:

  ncompress_4.2.4.2-1+lenny1.dsc
    Size/MD5 checksum:     1001 540971822f1077df924611a0795d708c
  ncompress_4.2.4.2-1+lenny1.diff.gz
    Size/MD5 checksum:     7958 9e1082cc4b82240e9cd76b09f93adebb
  ncompress_4.2.4.2.orig.tar.gz
    Size/MD5 checksum:    32978 53421df78cc9ff311ce0392e3a729920

alpha architecture (DEC Alpha)

  ncompress_4.2.4.2-1+lenny1_alpha.deb
    Size/MD5 checksum:    25032 97104b799ed18dda40a495af691097e7

amd64 architecture (AMD x86_64 (AMD64))

  ncompress_4.2.4.2-1+lenny1_amd64.deb
    Size/MD5 checksum:    24058 ff6531d0a69fd6cffaeb66ef05bc5d53

arm architecture (ARM)

  ncompress_4.2.4.2-1+lenny1_arm.deb
    Size/MD5 checksum:    23852 7157e843f9066f7d20e07a83cba0b2e1

armel architecture (ARM EABI)

  ncompress_4.2.4.2-1+lenny1_armel.deb
    Size/MD5 checksum:    23740 d4323cbb9d5938850b71514f1edd5ca0

hppa architecture (HP PA RISC)

  ncompress_4.2.4.2-1+lenny1_hppa.deb
    Size/MD5 checksum:    25466 b276a1839ad20d5dc675a119c76e66e5

i386 architecture (Intel ia32)

  ncompress_4.2.4.2-1+lenny1_i386.deb
    Size/MD5 checksum:    23076 a53008254138090e760ec7a51d551bee

ia64 architecture (Intel ia64)

  ncompress_4.2.4.2-1+lenny1_ia64.deb
    Size/MD5 checksum:    28200 a2736fb1efd14e676ac6a2cb1ec3da46

mips architecture (MIPS (Big Endian))

  ncompress_4.2.4.2-1+lenny1_mips.deb
    Size/MD5 checksum:    24106 0b3cf882744400648ddefa54111ae540

mipsel architecture (MIPS (Little Endian))

  ncompress_4.2.4.2-1+lenny1_mipsel.deb
    Size/MD5 checksum:    24204 8c85696714487268c4bf0adb0a9d31b9

powerpc architecture (PowerPC)

  ncompress_4.2.4.2-1+lenny1_powerpc.deb
    Size/MD5 checksum:    24476 98db6645c581ccd5cf35a8ca0ea28966

s390 architecture (IBM S/390)

  ncompress_4.2.4.2-1+lenny1_s390.deb
    Size/MD5 checksum:    23944 9e40760b9cfbe73ceb6180da37175892

sparc architecture (Sun SPARC/UltraSPARC)

  ncompress_4.2.4.2-1+lenny1_sparc.deb
    Size/MD5 checksum:    23860 a422335c694163587222691d9fa728ac


  These files will probably be moved into the stable distribution on
  its next update.

-
 ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-securitydists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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