Debian: 'gzip' Potential buffer overflow

    Date13 Jan 2002
    CategoryDebian
    2294
    Posted ByLinuxSecurity Advisories
    GOBBLES found a buffer overflow in gzip that occurs when compressingfiles with really long filenames. Even though GOBBLES claims to havedeveloped an exploit to take advantage of this bug, it has been saidby others that this problem is not likely to be exploitable as othersecurity incidents.
    
    
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    Debian Security Advisory DSA 100-1                     This email address is being protected from spambots. You need JavaScript enabled to view it. 
    http://www.debian.org/security/                             Martin Schulze
    January 13th, 2002  
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    Package        : gzip
    Vulnerability  : Potential buffer overflow
    Problem-Type   : local
    Debian-specific: no
    
    GOBBLES found a buffer overflow in gzip that occurs when compressing
    files with really long filenames.  Even though GOBBLES claims to have
    developed an exploit to take advantage of this bug, it has been said
    by others that this problem is not likely to be exploitable as other
    security incidents.
    
    Additionally, the Debian version of gzip from the stable release does
    not segfault, and hence does not directly inherit this problem.
    However, better be safe than sorry, so we have prepared an update for
    you.
    
    Please make sure you are running an up-to-date version from
    stable/unstable/testing with at least version 1.2.4-33.
    
    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 2.2 alias potato
    - ------------------------------------
    
      Source archives:
    
         http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4-33.1.diff.gz
          MD5 checksum: e5669c5bbb138dbf1c522337aab58fc8
         http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4-33.1.dsc
          MD5 checksum: 55f3382aebcf5e1b83b3e4004864f15c
         http://security.debian.org/dists/stable/updates/main/source/gzip_1.2.4.orig.tar.gz
          MD5 checksum: b94b3e07797e0cbf3622bb2fe5682f0b
    
      Alpha architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-alpha/gzip_1.2.4-33.1_alpha.deb
          MD5 checksum: 725078383b4716acf7bcf1bb85f2ab7d
    
      ARM architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-arm/gzip_1.2.4-33.1_arm.deb
          MD5 checksum: 4d949c3e3e770384fae6feed805fd08b
    
      Intel ia32 architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-i386/gzip_1.2.4-33.1_i386.deb
          MD5 checksum: b61176ee1953b528e50268995e6c2505
    
      Motorola 680x0 architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-m68k/gzip_1.2.4-33.1_m68k.deb
          MD5 checksum: 61fb17bebf8ee72a087b13df4800d8e7
    
      PowerPC architecture:
    
         
    http://security.debian.org/dists/stable/updates/main/binary-powerpc/gzip_1.2.4-33.1_powerpc.deb
          MD5 checksum: c59b537fed3dadc84d630b3033112781
    
      Sun Sparc architecture:
    
         http://security.debian.org/dists/stable/updates/main/binary-sparc/gzip_1.2.4-33.1_sparc.deb
          MD5 checksum: d375736c6e46f185354b608ec11d5e0d
    
    
      These files will probably be moved into the stable distribution on
      its next revision.
    
    - ---------------------------------------------------------------------------------
    For apt-get: deb  http://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.
    Package info: `apt-cache show ' and  http://packages.debian.org/
    
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