Linux Security
    Linux Security
    Linux Security

    Debian: New ncompress packages fix potential code execution

    Date 09 Aug 2006
    5856
    Posted By LinuxSecurity Advisories
    Tavis Ormandy from the Google Security Team discovered a missing boundary check in ncompress, the original Lempel-Ziv compress and uncompress programs, which allows a specially crafted datastream to underflow a buffer with attacker controlled data.
    - --------------------------------------------------------------------------
    Debian Security Advisory DSA 1149-1                    This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                             Martin Schulze
    August 10th, 2006                       https://www.debian.org/security/faq
    - --------------------------------------------------------------------------
    
    Package        : ncompress
    Vulnerability  : buffer underflow
    Problem type   : local (remote)
    Debian-specific: no
    CVE ID         : CVE-2006-1168
    
    Tavis Ormandy from the Google Security Team discovered a missing
    boundary check in ncompress, the original Lempel-Ziv compress and
    uncompress programs, which allows a specially crafted datastream to
    underflow a buffer with attacker controlled data.
    
    For the stable distribution (sarge) this problem has been fixed in
    version 4.2.4-15sarge2.
    
    For the unstable distribution (sid) this problem has been fixed in
    version 4.2.4-15sarge2.
    
    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 at the end of this advisory:
    
    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 3.1 alias sarge
    - --------------------------------
    
      Source archives:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2.dsc
          Size/MD5 checksum:      591 8fa14e666180e8a37491dcd33114dbff
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2.diff.gz
          Size/MD5 checksum:     8124 1b7aa0d3079f334202df5d1c77e0f9bf
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4.orig.tar.gz
          Size/MD5 checksum:    31765 7ef0d51aee53b6cd5c6aefe637491281
    
      Alpha architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_alpha.deb
          Size/MD5 checksum:    24370 72b955790079338f98afd62c49644897
    
      AMD64 architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_amd64.deb
          Size/MD5 checksum:    22924 58d6732c316a9317171c97e74e2cbe44
    
      ARM architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_arm.deb
          Size/MD5 checksum:    22522 3ec1cfdab5e4811ca5246a11b94b244d
    
      Intel IA-32 architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_i386.deb
          Size/MD5 checksum:    22158 a875189b26255c72ad2ec532c23eef05
    
      Intel IA-64 architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_ia64.deb
          Size/MD5 checksum:    26442 ef71240d1b7b4a699b5f817a46f7ead9
    
      HP Precision architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_hppa.deb
          Size/MD5 checksum:    24484 51c63bab7d53aa3392e268aec4d271ab
    
      Motorola 680x0 architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_m68k.deb
          Size/MD5 checksum:    21536 2cf5bbb67a3f32db857c75a2d352f47a
    
      Big endian MIPS architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_mips.deb
          Size/MD5 checksum:    23878 a71db49787837da587552030045c73c1
    
      Little endian MIPS architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_mipsel.deb
          Size/MD5 checksum:    23822 22ad68863b79b4bdf5302141be22deb6
    
      PowerPC architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_powerpc.deb
          Size/MD5 checksum:    22912 bafe112da108e4b66d64342b55ac4a47
    
      IBM S/390 architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_s390.deb
          Size/MD5 checksum:    22958 a8f180c5182ab1040746e66dfa99a6e1
    
      Sun Sparc architecture:
    
        https://security.debian.org/pool/updates/main/n/ncompress/ncompress_4.2.4-15sarge2_sparc.deb
          Size/MD5 checksum:    22532 db6aed643f82c6a0c0bdfded603d97be
    
    
      These files will probably be moved into the stable distribution on
      its next update.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb https://security.debian.org/ stable/updates main
    For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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